I was not referring to your organisation but to makers of professional equipment, who like to be stuck 2-3 generations behind. We also have to work with equipment that relies on particular USB standards and only works with selected laptops. Obviously we don't use Macs to operate that equipment.
My expectations are very similar to yours and that's why I have been using Apple for the past 10 years — they offer the best products for my purpose.
Overall, it seems that we are in agreement about key points but I still find it very difficult to understand your narrative. More powerful workstations with more ports and features than the MBP were available at all times. And if you story is that you needed better performing hardware, I don't understand why you stuck with Macs for so long. This time you got a larger 17" laptop that offers 20% more CPU performance. Few years ago you could have got a larger 17" laptop that offered 50-100% more performance. And I can understand that Apple's drive to embrace new standards of computing make their products less suitable for your use case — just as they decided to drop serial ports and embrace USB twenty years ago, for which they were widely criticised — but that's not Apple problem, and certainly not an indication that Apple is abandoning professional users. In my field (academia), Mac is as prevalent as ever.
Bottomline: pick the tool best for your job. Computers are not religion.
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I think you should re-read Windows Privacy Statement:
https://privacy.microsoft.com/en-gb/privacystatement
Not only they use personal data for targeted advertising but also state that they will share your data "with vendors working on our behalf", "to protect our customers; to protect lives; to maintain the security of our products; and to protect the rights and property of Microsoft and its customers". And of course there is Windows keylogger...
Personally, I think that the privacy statement makes Windows 10 a risky software to be used in a corporate or governmental environment as MS fairly openly reserves the right to spy on you to "protect their products", which can frankly mean anything.