Personally I think Evans deserves some credit, as he probably saved TG.
Given the nature of the previous presenting team you could never really follow that with any great success, however the collective ire at Evans did provide a distracting focus from the loss of Clarkson and Co., which allowed Reid, Harris and LeBlanc the space to grow into their rolls without too much scrutiny.
Then, rather than being dismissive of the new 'unknowns' the consensus seemed to be that 'these other guys are pretty good; if only they'd drop Evans'.
I'm sure it wasn't what he intended, but ironically, I think he did the job he was hired to do.
Biting the hand that feeds IT
