Your premise is also a huge oversimplification. You can make all the innuendo you please about the talent gap between Clemson and their opponents, but you're turning a blind eye to the delta between Clemson with Lawrence under center and Clemson without Lawrence. Lawrence is elite.
Remember the QB at Clemson after Deshaun Watson? It wasn't Lawrence, it was Kelly Bryant, and he wasn't anywhere close to Watson (or to Lawrence, his eventual replacement). The difference in performance between Lawrence and Bryant was readily apparent even to armchair analysts. Clemson had a major drop-off after Watson left, and then things picked right back up once Lawrence took over.
Lawrence, as a freshman, was that much better than Bryant as a senior - and Bryant is no slouch (went on to start for Missouri and has signed with a CFL team).
I'll also point out that your team talent differential argument also hurts Wilson. By any objective metric, BYU was more talented than any of their opponents last year (yes, even BSU once they got down to their 4th string QB). Are you going to be intellectually consistent and diminish Wilson because his single impressive season included a murder's row of Sunbelt teams and state directional schools? I suspect not. Neither should you cast aspersions at Lawrence because he accomplished great things while surrounded by top talent.