It happened to me also, I also wanted to sell a game on GOG, I sent the game, they replied two weeks later that they would look for a team to evaluate it, and after that I received practically nothing.
My understanding is that if there are games that don't meet their quality standards, they reserve the right to abstain.
This is of course not good. Maybe that explains it then.
These days, i fear that i can't keep up with all the new rules and offerings. (aka Last Steam License).
So, yes. its great that itch actually lets you sell your creation on their website. It probably hasn't the reach as the giant Steam.
I for one, only heart about itch by accident. It was unknown to me before.
