I hope that this isn't a sarcastic post. Here's my initial impressions of the season after using my day-off to play apex.
Legends
"All characters are strong and fun to play, not just a few"
You forgot to mention Wattson and Crypto. Other than those missing buffs, the other legends feel fine I guess. I have yet to use Caustic. Seer is a bit too OP but I guess this was intentional like what they did to Horizon in S7. They can easily nerf him by removing one-by-one the damage, the flash, or interrupt of his tactical. The ultimate is really good but not OP.
Guns
I agree that the guns feel okay and balanced right now. The Rampage LMG can be devestating with a thermite but the normal mode is balanced. I still haven't used the CP spitfire and alternator in-game but they're uber strong in the firing range. This might be the strongest set of CP weapons ever. I really love the prowler being ground loot again.
Map
I love it! I love all the map changes but people still drop at fragment which is sad. I've been crying in this forum for Respawn for multiple seasons now to rotate all 3 maps and we're finally getting that next week if the datamined stuff comes true.
Arenas
MM still sucks. When I get a level 50 teammate, I pray that the guy is a smurf but nope it's a real noob player. Still haven't touched ranked arenas.
Ranked BR
Haven't touch this one yet. Gonna let the preds/masters/diamond climb up their ranks for a week then hopefully grind my way back to diamond IV.
Conclusion
Overall, the content we got is enough for a minor season (remember that even numbered seasons are minor update seasons). Let us also not forget that there will be a Rampart town takeover mid September, Recolor event by the end of August, and the Halloween event just before the season ends on November 2. Of course I'm hyped for that new map coming on season 11. And give credit where credit is due, the servers did not die on day 1. I think they overhyped arenas in S9.