Why is this a thing?

I've been playing this game since 2019 and never knew this was a thing until today. Why the f**k can you get penalized for getting disconnected from a custom game room for? I can under in quick match, rated and ranked but why punish someone if their Internet craps out for two seconds in a custom game room for?

Is bandai and B.B studio saying if you have shitty internet don't play our games? Cause that's what I'm feeling for being punished for my Internet for once in a blue moon decided to disconnect and im in a custom room so they punish me.this so stupid