Putting aside fees and whatever, that was straight-up unpleasant. I watched about 10 videos, between recent, popular and random. I appreciate the people for submitting videos and such, but this is a serious endeavor and none of them would have a chance in a real mission. I suspect most are treating it like a vanity exercise. This felt more like a reality TV show about going to Mars. Unfortunately, seriously interested and competent folks were probably mixed into the rabble clamoring for attention.
I seriously respect the [real] folks that sign up for the eventual, one-way trip to Mars, but these seem not to be the folks. It's going to be hard. It's going to be unpleasant. And it's going to end both badly [in a sense] and gloriously. I didn't see that gravitas reflected in the folks I watched.