Realistically, that is probably the case, but people who are using macOS professionally are still willing to spend money on hardware with more performance, 'it

Realistically, that is probably the case, but people who are using macOS professionally are still willing to spend money on hardware with more performance, 'it can never be too fast' etc. My old 2010 Pro compiles node.js about 4X faster than a newer i7 iMac (and uses at least that much more electricity to do it, so that may not seem like a huge win, necessarily). It seems clear that the old Pro's flexibility and upgradability are essentially at odds with Apple's general direction towards soldered and glued products that are only extensible via Thunderbolt; I would be happy to see them move back towards more user-serviceable hardware, but I am not holding my breath. The question of whether that makes sense for their business is trickier, they do have deep pockets, so unless they lost money on the new Pro, it would at least provide bragging rights.