Summoner should keep it's utility.

[dinnertime]

Well, I mentioned it because that debate from back then definitely factored to why Yoshi-P thought of removing Rez from Summoner in the first place. Thankfully that didn't happen.

Anyway... With SMN and RDM now, they can go many directions. The most preferred from many people is to just buff SMN's potencies to be higher than RDM. Another is to just put them more on-par which also means increasing SMN's potencies because both RDM and SMN essentially have the same kind of utility but SMN is lower in damage. Also no SMN doesn't have more because the utility that comes from Phoenix is very unreliable to be considered useful imo.

Personally I'm in favor with just increasing SMN's potencies because of two things. SMN's new animations are too grand for it to warrant being the lowest caster DPS. The other one is that RDM has already been established as the support/utility-type caster DPS. If anything they should give more of that to RDM but that's just my opinion.

Now what I'm going to say next might be controversial, but I'm kind of tired of DPS having these healing and mitigation abilities when we're living a time where healers and tanks are just BLOATED with them already. It can still be useful and adds to the flavor yes, but SMN having faster Rez-casting to catch up with RDM is not really necessary? Most SMNs will not bother hard-casting Rez (unless both healers died and Swiftcast is on CD) and will be Swiftcasting it. Problem is, it's preferred to use Swiftcast on Ifrit's Phase. Also it's a bad idea to have Rez casts be shorter during Bahamut/Phoenix phases. Most SMNs won't bother with it in theory because doing anything but the Bahamut/Phoenix attacks is a massive DPS loss. Same with Radiant Aegis applying to other players is not really necessary, but this would actually put it on-par with RDM's Magick Barrier (with some adjustments).

Physick should be INT-based though if you don't trust your healers enough when you're about to die. Another thing they could do is just replace Physick with Rekindle when you summon Phoenix like a lot of people have mentioned, except you get to hold it outside of Phoenix.

EDIT: Added more stuff in grey text.