“Oh cool, we got a Reinhardt!! That should help a lot. Ok guys, group up at the choke and… hey… Rein… no! NO! WHERE ARE YOU GOING?? DON’T CHARGE INTO THE WHOLE ENEMY TEAM ALONE! REIN NO! AAAARRGGH!” (enemy team deletes the Rein in three seconds, then pushes into the opening that was suddenly created and kills the rest of our team)
Of course a lot of Reinhardts don’t play that way… but to be honest, at least at my rank (low Gold) a lot of them do! Listen, I know playing Rein aggressively can really pay off, I’m friends with a Plat Rein main who can actually charge into a group of enemies and start mowing (well, hammering) them down. But the trick is picking your battles! If you suddenly charge in without warning and with most of your team not in the position to assist you, you’re getting yourself killed and maybe a Support foolish enough to follow you in, or possibly the whole team.