FFS... I guess I am repeating myself then.
Bole - A 10% damage reduction ability that you only have access to 1/6th of the time. This means that the healer kits can't be balanced around having this type of single target damage reduction ability. It is either considered essential, which puts AST at a disadvantage 5/6th of the time, or it is considered useless.
Ewer - Crucial MP regeneration, that impacts the balance of MP maintenance. With it (again only 1/6th uptime and totally RNG) AST has too much MP, without it, not enough.
Arrow - Speed increase. Some jobs NEED this, some jobs have their rotation thrown off by it making it actually detrimental. Most jobs however simply do not feel the benefit of it at all. On paper you can math it out and say that it should be a ~12% DPS increase or whatever, but in practice, players clip their GCD's, and unless it results in getting a whole additional GCD in the 30s window that it has an effect on (which it doesn't) then it's useless.
Spear - Crit buff. Crit scales logarithmicly, making less effective at the start of an expac and more effective at the end, making it disproportionately effective for some classes than other, and completely screwed with Bards job mechanics pre-Shadowbringers to the point where it was proccing way more Bloodletters, etc. than the devs ever intended.
Spire - doesn't need mentioning.
Balance - ironically the only balanced card in the set.
The whole picture, has AST players either constantly fishing for expanded Balances (so the whole RNG thing is a waste of time) or having their core healer kit (Bole and Ewer) at the mercy of RNG (objectively detrimental to them as a Healer)
But no, I'm sure you enjoyed having such a janky RNG system to fight against. I'm sure it was a blast!
I'm sure Tanks would enjoy it if their cooldowns randomly disappeared form their hotbars as well, or perhaps Monk's had their stances randomly change instead of being on a rotation.
Or you know what, maybe Black Mages spells could either cast random fire or ice spells. Will it be Blizzard and regen MP, or will it be Fire and switch from UI to AF when you don't want to? Who knows!