The problem isn’t that the meta has gone wrong.
The problem, actually, is that no one wants to take up the thankless task of being cussed out and shit on by both players and maintainers alike to fix the overall balance of the server. So what happens is that one contributor thats brave enough makes micro changes that do not fix the overall powercreep problem but only fix one, and get lucky enough that it gets put through by a maintainer, and so the meta only gets changed slowly but surely.
But what needs to happen is a full sitdown by all maintainers and a couple of people (WHO ARE UNBIASED AND WILLING TO LISTEN TO EACH OTHER) from BOTH MARINE AND XENO SIDES and actually have day or even week long meetings where they discuss each facet of both sides to see what needs to be tweaked in order to make the meta more bearable.
They will have to discuss these factors for both sides (since I believe the King and Comms TM will probably be full merged to be completely honest considering development’s track record):
DEFCON and how it interacts with both Marines and Xenos (spawn points of intel, how much intel is given per item and if its fair or needs to be nerfed or increased, stationary intel points like engineering and comms should give more or less intel or should there be more mechanics attached to it as a way to divide and conquer marines organically away from front while still supporting it and making it more or less interesting for backline castes to interact with, etc.)
Marine equipment / numbers and how both sides interact with attrition of said equipment (CAS, Mortar, OB’s, their strengths and weaknesses, etc).
Xeno health and armor, castes, strains, and how they are positives or negatives to interact with or if their intended purpose is even being done correctly.
After these meetings and addressing each of these topics or more, solutions should be propose and then the proper tweaks made into a mega TM PR that would run for a week or more to test how it would work in a live server then have it actually be discussed during the time it is up to see what needs to be changed and gather public feedback as well.
All of this only requires proper communication, organization, and number changes which do not require a lot of development knowledge (I used to do this on TGMC except by myself instead of in a group, and if I can do it, so can you).
The problem starts with the fact that this is a free project that anyone can be part of and is not a full time job so people have other commitments such as real life events, work, touching grass, and general burnout from the game. Throw in the clash of egos (“YOUR A XENO MAIN”, “YOUR A MARINE MAIN”, “ALL YOU DO IS PLAY SURVIVOR THEN OBSERVE YOUR OPINION IS SHIT”) and you have the current state of CM balance where the only real change we get is incremental changes most of the time, with the one or two brave individuals willing to throw in their hat and get hated on (such as the Xeno Endgame TM).
TL;DR just get used to it till someone brave enough makes a radical PR and gets it accepted regardless of its hate or become the hero, because not enough people will actually come together to change the balance in a proper way anytime soon.