Can someone explain to someone who just bought the game why season 2 is so bad specifically?

I found the game on sale for 20$ and just started playing the story mode.

Hopped on the reddit to see highlights tips ans tricks, but all I see is everyone saying boycott or I'm done playing because of season 2.

Looking further I've read comments where it's only just 50/50 and how the emergency patch fixed a few minor things.

What exactly is 50/50? What's different from season 1? What exactly is terrible about it?

Not trying to troll or anything and I'm mostly an offline player type of dude that likes to play this game as a party style game/story mode.

Would love to know your thoughts, and I hope no one thinks I'm trolling with this post. I'm really curious.