Yes this is 100% credible right here. You totally didn't make this up.
You're telling me that a for-profit company is trying to make more money? What? BLASPHEMY! While LoL may have more players Dota 2 is doing quite fine for itself with a solid 6.5 million active players (not including people who are still playing WC3 DotA). It's a more solid title with better production quality, more depth and more diversity within the gameplay. It's proven its longevity while LoL is more of a fad that is poorly balanced and the company (Riot) treats a good portion of its players like shit and handles the game disgustingly badly. Best of all it's made by a respected company (Valve) that has long seen the value in community made content. Valve also has a little something called Steam which has over 50 million active users, more so than LoL.