This is a fight; a fight to win hearts and minds. If the squishy middle thinks that there is no difference between the two parties, and believe both sides resort to over-the-top accusations, they probably won't vote conservative; they'll just stay home.
If Hoffman has proof that the election was stolen, then he can make the claim. Until then, he should let the process continue.
I don't think anyone would have a problem with Hoffman's statement except political strategists who follow the unwritten rules of their timid imaginings.
Hoffman broke the rules to begin with by running third party. That is the kind of unscripted, bold action lacking from the typical Republican mindset.