The not-nerf pretty much proved that Respawn doesn't really care to admitting to mistakes, but that's not just a Seer thing, that goes back to other characters as well.
This is a money chaser first, and game second. You're going to be tempted to buy skins for characters that will inevitably be made useless for new characters, so you can buy more skins, etc. etc. Can't see it happening any other way.
There could be a base cost for the game. There could be a subscription fee. But Freemium games with loot box options are in the business of ratcheting up net money which happens casino style. To me, the lack of balance is pretty purposeful, usually the only thing holding balance in place is if your game stays popular enough to play. With Apex sitting up near the top, there just isn't that much incentive to fix mistakes or admit problems, as far as I can see.
I'm not even mad about it, but I think when you have gross examples like Seer who clearly have to be reworked and they just get a lip service 'nerf' it's time to understand the game isn't what it used to be, and it will not go back. I'm fine with it, it's just a sign that there are probably better games out there to play. Good news for Apex is there's no need to actually spend any money on it, it can be used like an old tractor while finding that better game.
Speaking of!...I got to platinum early this season so now I can play ranked as a better casual mode again. Since the scoring system is hot trash, and seer is in every team that wins, it does help to play ranked without giving a flying F. I punched the last team member of a team out last night, that made me laugh.
