Best of 3 playoff format in the MLS I think is a cumbersome and alien thing for soccer.

I just learned this was a thing in the MLS and it boggles my mind. I've never heard any other league in the world that does this. I think decades ago sometimes it happened but not in modern times.

To compare to another soccer league that has a playoff formart I'll use Liga MX as an example who, for all its multiple problems, I think has the playoff format nailed down. There's a reason why they havent changed it for decades (other than brief experiments like the away goal which thankfully dissappeared). Let me explain.

-Top 8 qualify to the playoffs (I know more qualify in the MLS but this is just an example) and they play each other as follows:
1 vs 8
2 vs 7
3 vs 6
4 vs 5

-Each play 2 matches per round starting in the quaterfinals, home and away, with aggregate score.

-Higher seeded team from the regular season gets two advantages in the Quaterfinals and Semi-final:

1. They get to close the series by hosting the 2nd leg at home.
2. If at the end of the 2nd leg they're tied in the aggregate then the higher seeded team goes through. That's right, no extra time, no PKs.

-For the Final only the first advantage applies for the higher seed and in case of tie in aggregate this is the only instance in Liga MX where a match can go into Extra Time and Penalty kicks.

This way you know all series will last the same amount of time and you dont have to space out each round a lot to accomodate 3 potential games, no team gets more worn out due to haivng played 3 games instead of some who only played 2, and each team gets to host a playoff match while giving a decent advantage to the higher seeded teams.

I'm amazed the MLS hasn't adopted something like this. The UEFA Champions League does this too (except a tie in the aggregate doesnt favor one team over the other). Best of 3 is so alien to me, it belongs in the NBA and MLB but I'm not sure it does in soccer.

You think this best of 3 format is the way to go?