Could be that this is common among any MBP of the past few years? I just got a refurb 2015 and sent it back for this issue (not via Apple). The very helpful company said they could not reproduce the issue but replaced the trackpad anyway. I'm finding the same issue anyway with the replacement.
I've had Macbook Pros since 1998, including a 2013 MBP 13 inch, which I used nonstop up until this year, and many Windows laptops and haven't had this issue before so am pretty sure I'm not imagining it. It is pretty subtle - but on my machine at least, manifests as a slight clicking on the bottom right - if I rest my thumb I can sometimes 'click' the trackpad audibly, without registering a click. It will do this 5 to 10 times and then it won't for the next 5 -10 times. It's really annoying and feels like it's broken and 'not right'.
I looked online and tried the suggested fixes including air, a four finger 'squish' and toothbrush cleaning.
It could just be something to do with the Apple implementation of their trackpad - it could be annoying without being a 'fault'?
Would be very interested in hearing other views on this.