Personally, I just dont understand the following logic:

Melee dps must have a higher base potency because they will have less uptime. And so to bring it back to normal level it is needed.

When I first started taking this game seriously on higher end content, I understood this as "basic potency should be higher so at the end all dps would have the same dmg"

But then comes the concept of "utility should be a trade for dmg" - which is so strange to me as a SMN main cause my only team utility that I use in high end content is the dps buff that Reaper has better and the 1 person targeted heal of my phoenix which I cannot decidedly control the timing of and mostly don't need to use on anyone else but myself, if the healers are competent...

I don't really get what justifies difference between melee and melee or tank and tank?? It is just so strange to me. I just don't understand. So I just accept and thats it

Officially we should be able to clear all content with all jobs.
(But I would be super pissed if I was a WHM and trying to join a P3S party, when people lock Astro)