Problem is we don't know exact numbers, equally when relying on the hardware for a living discounting such reports is somewhat foolhardy, as we're not just seeing a couple of disgruntled customers here...
I also tested a fair few 2017 15" MBP's with every one feeling to me to have inconsistent key actuation under heavy load, nor was Apple too pleased resulting in three staff and two security guards standing round me

for what? Running multiple instances of Dev/Null on their 15" premium notebook, they were clearly very uncomfortable, nor did I hide my intentions
I might be wrong here, however I feel that regardless of the computational load the notebook's keyboard should not be effected. I certainly know non of my previous MBP's had issue or their subsequent Windows replacements. I can loan a 15" MBP pretty much indefinitely, however I can only view multiple units at Apple nor was I personally convinced, with the 2017 keyboard remaining questionable...
Q-6