I mean, it’s kind of a catch-22. Most of the time, you don’t know whether or not your team can be trusted to actually help you push. Naturally, this makes you hesitate. If you hesitate, your team will screech profanities at you and report you for throwing.
If you push anyway, there’s at least a 60% chance that your 4-5 DPS will pick that exact moment to do everything except help you push the point. You will die, horribly, in an instant, and your team will–you guessed it!–screech profanities at you and report you for throwing.
You’re nervous and hesitant for a good reason. Pushing a chokepoint requires you to trust your team, and there’s basically no one on this game you can trust.