I don't. I think that underappreciates how much of a touch mother****** Al Iaquinta is. Khabib played it smart given the amount of changeups that had occurred and absolutely deserved the win, for sure, but he didn't carry Al, he was actively trying to choke him out in the 2nd.
I think Khabib realized Al had better wrestling and probably different wrestling to what he'd prepared for, especially once he was sweaty and showed he wasn't giving up that low stance so Khabib couldn't shoot doubles.
I think both guys played to the best of their abilities against a guy they didn't prepare for a did their respective bests to negate their opponents strengths, Als counterstriking and power and Khabibs grappling.
Could've he finished Al? Maybe. Could've he gassed himself trying to.finish Al and possibly give Al a chance in the fight, quite possibly IMO, especially on the feet and after rounds 1 & 2.
I completely agree with the bulk of your post though.