Did Horner, Max or Helmut ever question Hamiltons achievments?

After the whole shitstorm that was Totos and Hamiltons comments on Max and Redbull, it made me wonder: did the opposite ever happen? Horner is well known to be a shit stirrer, but I personally don't ever remember him dismissing or questioning Hamiltons or Mercedes achievements. I obviously can be wrong, so please correct me if that ever happened. Really curious about it.