I've got a saying; "Don't be Peter Chiarelli"
The guy traded two superstars (Ironically both Tyler and Taylor) for bags of pucks.
I have this thought in my head like a 20 year old Seguin walked into the post season meetings with Chiarelli and told the GM to stick it up his bleep. Then Chiarelli decided that the kid was too immature/unprofessional/uncoachable whatever to be worth keeping and opted for a trade.
I don't care if Merkley has issues. I care if he's a sociopath dude who likes to kill small animals. I would make no real attributions on the ultimate maturity of any player until they are 24 years of age or older. If Merkley is the best talent and might drop due to "being 17", I'd take him 100 times out of 100.
Partying and not full focusing on your craft are signs of immaturity, and people grow out of them.
In my experiences in life, people rarely grow out of being shitty people. Your basic ability to interact with people is formed early on in life and tends to stick with you. I've seen people at work and school who need to mature, but generally, if someone is always moody, temperamental and in general just difficult to get along with, is something that develops in childhood and is hard to fix.
If you think that is what got Seguin traded you are mistaken. It involved pissing off the entire locker room, not ignoring authority.
I also disagree with the logic Merkley is a good player. Despite his offensive skill, his presence on the ice has had a negative effect on Guelph's goals for. Everyone talks about his high-percentage of points, but ignores the fact for 2 years running, Guelph has a better goal differential at 5v5 when he is on the bench. That is because he is an atrocious defender who lacks effort. Also, everyone ignores the times he tries his crazy plays when they lead directly to a turnover. He has great vision, but I question his overall hockey IQ. His risk/reward assessment isn't there.
If you want to compare people who don't want to take him to Chiarelli fine. But, in my eyes, do you want to be Garth Snow who repeatedly wasted picks due to not doing proper research such as Ho-Sang, Kabanov, Rich Pilon, etc.