Check that out. Many top 10 and even some top 3 players lost to that. I won’t name them as I don’t want to upset anyone (like Gary Oak) but you wouldn’t believe some of the players you see and hear about regularly who lost to it.
It’s fair to complain about bad Egg hatching luck, but as a F2P to complain about someone having a better collection doesn’t make sense, as you choose not to spend, therefore the collection will follow accordingly.
However match making should be fair. But if you keep coming up against Myth’s perhaps your strategy is what’s getting you punching above your weight and the system matches you that way.