White-mage is doomed - and why

[QooEr]

It also feels pretty unrealistic completing a fight with 0 lily uses. Every lily theoretically saves you 4 - 10% mana and you got 4 free globals after 90 seconds.

Thats a fair point. I didnt want to just arbitrarily choose a number of lilies used per minute, so i did the math between using no lilies and all lilies. If you average both out (so using half your lilies, i guess?) Whm's mp economy is roughly on par with sage's but still the lowest of the four.

Every long fight has downtime phases too. Like there is no single ultimate without downtime.

True, but every other healer will also benefit from said downtime. Also worth noting that since misery is a dps loss without downtime, people wll want to spend their lilies during said downtime, which will also invalidate the mp conservation they would have otherwise had.

If the mana regen would be par with other healers(without lilies), I think it would be kind of overpowered.

Im not so sure about that. i pointed this out in my original post:

if you use every lily you get as soon as possible merely to save the mp from that gcd, whm lasts 20 mins till oom. Ironically, these are 4 more free gcds every 2 minutes, which is exactly what old thin air used to bring over its endwalker iteration.

what this implies is that, we are already in that hypothetical "kind of overpowered" state, and it doesnt seem to me like WHM is overpowered rn.