If you are not having fun, leave the lobby
From what i have seen this is becoming a more regular occurrence. I see a ton of people leaving lobbies that are getting stomped and rightfully so. You don't need to feel bad at all for leaving if the game puts you in an unfair lobby or a match that is halfway of getting pounded into the ground. Don't let anyone tell you that leaving is bad or unacceptable. we need to keep this trend going.
I can't imagine that all the leaving is having a positive effect on "the data" and "Engagement optimization" so to everyone who leaves regularly i want to wish you well and keep doing what you are doing.
Remember, a game is about having fun.