It is an intrinsic problem with SIMD as we know it that you have to recode your application to support new instructions, which is a big hassle. Most people and companies will give up on supporting the latest and greatest and will ship binaries that meet the lowest common denominator. For instance it took forever for Microsoft to rely on instructions that were available almost 15 years ago.
As Charlie Demerjian has pointed out for years consumers are waking up to the fact that a 2024 craptop isn't much better than a 2014 crapbook and there is zero credibility in claims about "Ultrabooks", "AI PCs", etc. What could make a difference is a coordinated effort end-to-end to widely deploy the latest developments as quickly as possible across as much of the product line as possible, to get tooling support for them, and drive developers to adopt them as quickly as possible. As it is Intel will boast about how the national labs are blowing up H-bombs in VR faster than they ever had, and Facebook is profiling users more efficiently than before and not realize that customers don't believe these advances are going to make a difference for them so instead of buying a new PC which might deliver better performance when software (maybe) catches up in 7-8 years they are going to hold on to old machines longer.