I was contemplating giving him an 8 but then I saw this...
And that's what makes a wrestler a legend. You can ignore his sloppy elbow, his preachy at times whiny promos, you even ignore the fall out if they literally shifted the culture. Punk had people tuned in, old and new wrestling fans. Because of Punk, guys like Sami Zayn, Kevin Owens, Nakamura and others recognized indy stars are being hired. Do you think if it wasn't for Bryan and Punk we'd have Owens and Balor as the first champions of a new title?
Nah, Punk is a legened. Ten.
Punk did nothing to change wrestling. This idea that he was some kind of trail blazing dude is crazy to me. WWE's thing going back to the early/mid 80s has been "take stars that were hot in smaller promotions and make them superstars here". They gave Randy Savage, who was smaller than Bret and HBK, a year long title reign during the biggest era of WWE (size and money wise) after being a super hot star in the Memphis area, traditionally the least respected territory of the era. Then in the 90s, they went with Bret, HBK, and Austin, all "average" sized guys in comparison to previous champions.
The indies are the modern day analogues of the post territory era. Punk getting signed and getting a push is about as big of a deal as any random dude in 1986 getting signed and getting a push. Paul London and Spanky got signed years early and got big pushes as well, especially considering how small they were and how they couldn't cut promos. Bryan getting over like he did had nothing to do with Punk. NXT becoming essentially a super indie had nothing to do with Punk and everything to do with getting the biggest stars they could outside of WWE, which happen to be indie and Japan guys.
Being surprised Punk got the push he got is like being surprised that Macho or Rude or Warrior got the pushes they got. Punk was just following down the path Savage/Bret/HBK made for him. He was an extension of that. He cut down no paths for other wrestlers.