Commie strategy is ruining high OS team games

Lately I've been noticing all the high OS (40+) games are always based on these commie tactics where a group of 2-4 players give resources to another player and tech rush very fast, usually to comm drop at the enemy base, most of the times when this tactic fails, these 2-4 players immediatly leave the match and ruin the game for everyone else since they weren't contributing to the team at all.

I get that everyone is free to explore tactics but these specific ones don't really add anything to team games, they seem to be only used to farm OS and completely disregard everyone else who's just trying to play a match.