We have finally come full circle, SMN's need help!

[Xisin]

Miasma's actually better than Blizzard because it stacks different while there are other forms of heavy that all stack. Sadly, SCH can and will use it if necessary.

In 2.2 I agreed with your reasoning that SMN's E4E + better Virus + raise + pet for stack mechanics were more useful (although there was no Apocatastasis back then as it is now) - in fact in 2.2 I fought for BLM needing more DPS than SMN on the reasoning that SMN had better utility. The tables have turned, IMO. Apocatastasis + Manaward/wall (more so than just shielding, you can bypass mechanics, ensuring survival and giving your healers room to focus elsewhere like in T12 final phase and T13) are more useful in both farm and progression T1-13 than anything SMN has right now, especially with how Antibody works with Virus (SCH Super-Virus + WHM Virus + BLM Virus is 99% of the time the same as having 3 Super-Viruses, with the rare exception). The only realistic CC casters can use thus far in Coil have been limited to Miasma and Blizzard being good against some adds mostly. I'd like to see some Sleep-able adds and some enemies who get affected more deeply by the things you mentioned, by both BLM and SMN, but it's seemingly against their design process.

I'd say it's mostly a better E4E and a battle res (which is usually not a priority for SMN to actually do, and often if it is, it's a wipe) in reality as the utility portion of SMN, at least so far in the game. For some reason they took away pet stacking in FC as a thing at all, an area they could have added for some survivability in T10. To me it's even more of a kick in the balls that BLM provides more SMN in raid survival when there are so many issues otherwise.

manaward/wall dont actually outright bypass mechanics this coil, you still have to deal with them, it prevents some damage but not all of it. I.E:
bennu pinions in t12 you still have to make sure you aren't clocking someone with a bennu and thus have to move
double dives in t12 still knock you back (although riding twintania can be fun.)
manawalling earth shaker still produces the lava pools - cover removes them from melees
manaward in itself usually isnt strong enough to provide complete damage prevention but it does help but it's not a 100% up kind of thing
manaward is good for t10 if you healer screws the pooch on red marks
I can't think of anything off hand for t11 other than standard self damage reduction blm has always had - it's dumb to take hydra breath damage don't bring that up

SMN should be using eye for an eye as often as possible, as a blm I do that, summoners really have no excuse not to use it, its REALLY good. flat damage reduction is amazing
STR Virus is dumb in final coil and blm virus is delegated to adds usually - not entirely a bad thing but smn virus is way better.
SMN up time is a big big thing, and if equalized in potency to blm smn will bankrupt blm AGAIN
your raise is a thing, sorry to say this but it was thrown at me in arguments too many times in 2.2 to ignore this argument now. SMN was taken over blm over this in several raid leaders minds

Should smn get more utility? sure why not I agree - it gives smn more purpose in the caster slot
Should smn run out of mp? nope I think that should be a caster thing since having a large resource to pull from is an nice advantage over physical dps. Keep in mind blm mp isnt infinite - blm is still constrained by mp just in a different sense, ice mode dps is balls, and it can come at really bad times occasionally, particularly in progression. thats to balance how high fire mode dps is though.
SMN should not be doing on par damage to BLM, it creates a situation where blm is simply not used. If you want buffs they should not be in the form of potency changes to override blm, that isn't balanced, it's just trading one caster for another.
I'd like to see smn have more utility, less mp problems and no damage drop off compared to blm. BLM should do more damage, have larger bursts but due to ice mode cannot provide super on demand burst without losing a decent amount of dps to do so.

last minute edit - summoners do more damage during limit breaking than a blm (this is a big thing) simply due to 1 dot vs 3-5 dots
Not directed at Sleigh but more general to others - stop comparing casters to melee - different slots and balance wise it seems SE wants melee to do more damage. NINs and SMN isn't comparable two different roles except damage.