That's not to say that their criticisms are unfounded. The main criticism today is around advertising and telemetry in Windows 10, and that's absolutely a problem for a professional device. There are many scummy practices still going on at Microsoft, and the disjointed nature between their divisions is plain to see.
I don't mind it, because I think criticism is required to keep people/companies honest, and to drive improvement, but at this point I think a lot of people in tech will always find something to complain about in regards to Microsoft.