I swear i've seen some classes get modified over and over these past few months but others haven't had a single update since their "rework" in 2021

I think PA simple can't, its ~10 years old game (imagine posting patchnotes "fixed  hits not applyed" after 10 years), initial dev team left them long ago, so in order to change classes they need to make it from scratch again, that's kinda explains why they can't even fix critical problems for some classes. Also BDO players only play FOTM "good" classes, so why bother and spend efforts and resources for change class that have like ~100 players (from 2mil of active players btw), where you can just keep buffing FOTMs like zerk, because aparently poor zerk is weak.

It's not about the question of how often you get any updates, but if it is necessary.
It's pointless to get an update if some class does not need or deserve it.

Some classes do seem to be extremely low on priority for patches from anything to bug fixes to balance tweaks. Mystic Awakening for example has a bug that massively impacts its performance for around 5 to 6 years. It has yet to be fixed after multiple attempts of posting feedback threads and bug reports in the NA/EU forums + KR forums + Global Labs channels. This bug combined with its outdated skill protections, CCs, and effects that weren't touched during the reboot leave the users with an extremely sour disposition.

I feel sorry for anyone playing a class that is neglected in PVE buffs, PVP buffs, and/or bug fixes. Sucks that certain classes that are already regarded as a top pick are receiving more and more. PA needs a new approach in how they assess feedback given to them regarding classes because something isn't right.

I'm still waiting for them to make Shai into a class that actually works for solo play without the need for our own buffs. It'll never happen, but I'm still waiting for it.

And for people who say "Shai is OP" no it fucking isn't. You don't like the class, you don't think it's great, you just like what our buffs can do for your class while ignoring that base stat Shais without our buffs are half the class your classes are without buffs. We only get "good-ish" when we buff ourselves and debuff the mobs. Take away the buffs and put them on any other class and what does Shai have? That is the problem. We don't get to experience the cocaine highs you get because we're so under-tuned to start.

I think you're absolutely right especially in PVE source: https://www.youtube.com/watch?v=TV1VgT0R4PI&t=480s&ab_channel=Quendya

Lahn seems to get a minor fix for every 50 other classes get. i think it's been 2 in the past 6 months.

Awa Mystic is really on short end  and it would be such as fun class. Just check the timers on ranked bosses and you will see the whole balancing picture. 

Lahn did not have a Class representative.... not sure about now, but the way they approach her, they likely still do not have a dedication dev for her. Even Shai has a dedicated developer.  Lahn has the most issues mechanically of all of the classes.