The matchmaking system is broken; it pairs teams that are extremely unbalanced

What’s wrong with matchmaking? Lately, I’ve often been in battles where my team is an entire tier lower than the enemy team. For example, take a look at the screenshot below: my team max BR is 13.7, while the enemy team has plenty of fighters 14.0 and 14.3 ranges—and even a few 14.7 BR?..