You may be a little optimistic here. Just because the technology exists does not mean everyone uses it.
I use a MITM proxy to reverse engineer my IoT apps all the time (a lot of them don't provide public APIs but I want to use them from my controller app). I have not once ran into one that used pinning.
I use a MITM proxy to reverse engineer my IoT apps all the time (a lot of them don't provide public APIs but I want to use them from my controller app). I have not once ran into one that used pinning.