that's pretty contextual tbh. if you're winning, then your executes or setups could be working well or your opponents aren't good enough to deal with them. if you're losing, your execs or setups could be fixed and you can learn from your scrim.
Optic already said they use scrim to practice on certain things some teams try to practice being more aggressive or retake strat. They don't play to just win the game. So losing scrims don't mean anything.