Being concerned that something is bugged is one thing. But more often than not, the way you phrase it makes it look like you're just complaining that your underdeveloped roster is struggling against veteran players who actually know what they're doing or that you have to actually figure out a strategy to beat an event instead of just autoing your way through it.
The Traya vs Reva thing, for example. Asking if Traya's kit (with or without the omicron) is bugged against Reva's omicron lead, there's nothing wrong with that. Asking for a Traya nerf because she does too well against debuff-heavy teams or out-of-turn attacks, even though she's specifically designed that way? We have to draw the line somewhere. SEE, to give another example, may be a Galactic Legend, but if you don't know how to use him against certain teams, obviously there's a chance you're going to lose regardless of what team you use.
The fact that an old character does well against new ones is not a crime, if anything it helps maintain some kind of balance. CLS, even with today's constant power creep, still does well against a lot of teams, even ones that were released years later. Would you like them to nerf him because of that? Or SLKR and Rey because they can beat Vader, Leia and Jabba? Comeuppance not boosting a Raddus fleet so it can beat Exec, Prof and Levi? Apparently it doesn't matter that Raddus doesn't require any kind of relic investment to unlock, Comeuppance has to be immediately reworked so it can beat the current meta ships that require R8-R9 to unlock.