Why are league queues so long?

I’m a masters league player and I’m currently in gm in marvel rivals. It takes me from 1.5 minutes at the very least to 15 minutes at the most to get into a game on euw with 10 people however here I am playing marvel rivals in gm getting 5-30 second queues at 5am in Europe.

If leagues player count is accurate with the daily players and the amount of people in each elo, my league lobbies should absolutely be much faster to get into a game as compared to marvel rivals lobbies.

I’m just curious, does league lie about its player count? Or do the servers just have limited capacity or something