Disconnection

I'm very upset that if your network crashes, you are given a few seconds to reconnect. Otherwise, it will count you as you lose. I know if you are the opponent, it can be frustrating to wait, but at least give a few minutes to let the network reconnect instead of a direct loss.

just make sure you have good internet before you play

Yeah, but with internet, you never know if the internet company malfunctions, or the wires are blown down

Don't recall the last time I ever had a problem...what time of the day do you normally play?

I wonder what their busiest days and times of days for traffic are.

Abandonment time depends on the time control.

https://support.chess.com/en/articles/8593801-how-does-game-abandonment-work

Also, if you get disconnected and you're in a lost position, the timer is shorter