Hardware

Not if the game library keeps increasing and APO is supported on all future Intel CPUs.
It really seems to be like a software optimization to better leverage E cores in gaming to improve performance. I don't see how that feature is going to die as Intel seems to be committed to hybrid for the foreseeable future.

unless they want a repeat of XeSS, they will cut their losses and decide not to invest resources into a feature that barely anyone uses.

XeSS is in close to 100 games now, more users are using XeSS than people even own Arc GPUs, as it has better quality than FSR and works on AMD and Nvidia GPUs too. Also Intel has already marketed Meteor Lake + XeSS, which they are expecting around 100 million people to buy MTL in 2024.

If anything XeSS has been the most successful part of Intels consumer GPU push.

Not being adopted? Dell, HP, Lenovo, will slowly stop selling 13th gen and move on to 14th gen, like they do every year. Businesses will buy the computers with the biggest number gen, as they do. Gamers on reddit aren't the huge market you may think it is for these companies.