I just played a 12-game freeroll for the first time in my life (at least I don't recall playing it in the past). It was a fun and weird experience. I had to look up the rules for some of the games as I played it.
As long as the fun is in it, that's all that matters. And that's good to hear that you're able to play some free roll because not everyone sees it when it's listed there. Because it usually comes out a few hours before the table and that free roll starts. The rules are not usually written upon registration as it assumes that everyone knows how to play poker. But it's not a big deal, as long as you're in, you get to play that and have fun, that's it.