So you're telling me..

[Kolsykol]

Snip.

Most of what you said was essentially just listing off and describing abilities and what they do.
Like Reaper is complex and not braindead cuz 3 gauges?
And stuff like not overcapping Soul Gauge isn't exactly supporting your argument here, you literally have to not be paying attention to what you're doing at all to overcap it.
I wish I had it that easy on MNK with Chakras especially with the new Brotherhood which turned it into a nightmare.
I'd even say that Kenki management is more difficult and it's not even difficult.
The most difficult thing on Reaper is essentially keeping your fingers in check and not using other weapon skills than Gibbet and Gallows after Gluttony and Blood Stalk.

If you want to make the argument about burst windows then the same could be said about Xeno on BLM and Ley Line placement and when to use it alone adds a lot of depth and requires you to have more knowledge of the fight even moreso when getting into min-maxing.
Reaper is easier than other Jobs in this regard too even if some Jobs like SAM have been simplified in this manner too.

And no most people don't use their Jobs to their max potential, but that's not how balancing works.
Jobs are not balanced around the average skill level that's why there's such a huge difference historically between the average BLM and a great BLM.
BLM shouldn't get buffed because the average BLM is kinda not that great with positioning etc, the devs give you a Job and then it's up to you to perform or not perform.
It's the same with your experience and gear etc, people are obviously judging the Jobs based on the same gear etc it's just disingenuous to pretend otherwise.

Like I dunno but you just listed off a bunch of abilities and then conveniently ignored how other Jobs have less forgiving mechanics and how BLM for example actually works in practice in a real fight.
If you played BLM then you'll know that you're being a bit disingenuous about it here.