Indeed there are plenty of examples of suboptimal Apple designs.
2015 Retina MBP, the trackpad cable runs over the battery, and the heat from the battery means I have to replace the trackpad cable every 6-12 months.
Earlier Intel aluminum iMacs would literally toast the LCD if you ran Windows on them, because the fans wouldn't ramp up enough, even if you had all the Bootcamp drivers properly installed. Sometimes this would happen in MacOS also. Needed to run 3rd party fan control programs, or you'd end up seeing brown areas on the screen around where the CPU and GPU heatsinks were.
As far as enclosures go, yes Apple stuff is physically pretty sturdy.