Nah, this absolutely looks like the result of Jony Ive leaving. Head of design quits and suddenly a long term trend under his leadership suddenly reverses? Makes more sense than any sinister explanation.
The pitch in the event was basically "we're giving pros what they want".
[1] https://www.youtube.com/watch?v=RgBDdDdSqNE
I really like this MacBook Pro but at $2000 I may wait for the next Air. I really don't need the Pro features, HDMI, SD card, that many GPUs, ..., and my 2017 Air is just fine for now.
> Evans Hankey, vice president of Industrial Design, and Alan Dye, vice president of Human Interface Design, will report to Jeff Williams, Apple’s chief operating officer
(From Apple’s website about Jony Ive).