My thoughts exactly. Wintel PCs are becoming too closed for comfort (see Intel ME, trusted/secure boot, etc.) and slowly degrading in terms of backward-compatibility, but they still have that legacy of openness inherited from the original IBM PC/AT of 1984 and continued throughout the 90s.

I wouldn't even want to call these "PCs" anymore. These are essentially locked-down mobile devices running a crude approximation of a real PC environment.