There have been a few players with issues that I've heard about, but that's not the way it's meant to work nor the way it works for the majority of players. I'll only get moved to the EU consistently if I'm playing at 1-4 am EST, which makes sense given how few American players would be on at that time.Like what is the point of making NA servers if you will always move the playerbase back to EU
It's not wasted effort because it works as intended most of the time. A few issues I have dealt with come down to the end user's ISP, but for the most part the matchmaking will just get smoother with time.