Being a Summoner can be disheartening these days :/

[Babekeke]

1) It's wrong that Delve didn't do much about staffdmg: Yaskomo's Pole rates @ 150dmg that's around 50 above MYTHIC at the moment, that's a whole lot, if you'd translate that to the avatars.

Maybe you missed that SE have said they'll be upgrading the r/m/e to be more comparable to the delve weapons?

So tell me why they wouldn't say "delve or gtfo" if you have way less dmg on other staves for Avatars

Kind of irrelevant, since the Grip will almost certainly drop from delve as well. If you have access to the grip, you have access to the staff. It'll still be "delve or gtfo" whether it refers to the grip or the staff. The difference being that you'll most likely want the staff anyway, just for the +MAB.