I still really don't get your argument. Pros do take it one day at a time and they generally try stuff they think they have a good chance of landing without hurting themselves. Noone wants to kill themselves or have a season ender. If a pro has triples on lock why shouldn't he try a quad if he wants to and if he thinks he can get it around? Because someone on the internet thinks the sport is progressing too fast?
Sure there's a risk of injury and death but there always has been and always will be with this sport - even when people are doing the mundane or easy. I really don't think someone who has great air sense and is hugely experienced on big jumps has an exponentially increased chance of injury or death when going for their first quad compared with their first triple - certainly not to the point where anyone has any justification in saying "slow down guys, you're progressing too fast".
Your argument still seems to boil down to the fact that you'd rather see pros doing one thing rather than another and that they should have some weird sort of self-imposed limit on how they progress and at what rate. That sort of attitude is completely antithetical to the whole sport and has no place as far as i'm concerned.
Regarding your final point about having a bigger focus on style have you had your head in the sand? Look at how popular the B & E show is, how huge P White has become, how many hundreds of edits there are nowadays of super stylish riding. The point is the sport is diverse and has plenty of room anything and everything people want to do with it.