Very unlikely. Ive is the successor to Jobs on the design front - what he and his team want to build chassis-wise, they're likely to build. He's got a great deal of political capital in the organization because he's been such a hit maker.
My semi-informed understanding of how things work at Apple wrt hardware is:
- Industrial design makes cool concepts, showing whats possible in hardware
- Eng & UX makes cool features, showing whats possible in software
- Product marketing determines mix of features that make for a compelling release
- Marcom figures out how to pitch it
Obviously lots of back and forth as a particular concept of what makes a compelling release is refined and roadmapped, and many other teams involved. That said, typically product marketing is driving what gets released.
As to the importance of product marketing itself, its one of Apple's greatest strengths because the vast majority of electronics/computer companies have a hard time figuring out a) what different segments of the market might want, and b) what is the intersection of possible AND useful with technology.
An easy way to determine if someone knows what they're talking about wrt Apple is if they complain about a monolithic 'marketing' bogeyman, because it shows they don't understand the nature of how products are built at Apple, nor how products succeed in the market.
That said, they occasionally miss. The keyboard has been generally well-received (tho a bit polarizing) EXCEPT for the obvious quality disaster. Not sure where the breakdown was there. And the touchbar has been very polarizing among the pro segment - the choice to bundle it with the high-end machines for the developer market segment was a miss likely entirely on product marketing.
Once again, I have 0 knowledge of the inner workings of apple, rather I am asking if this is a possibility.