I can’t imagine that especially Tim Cook’s Apple is naive enough to not realize that’s going to dent ad revenue, since most developers have to buy ads directly because of the current flaws. So it seems like that project won’t be approved because your boss and their boss are going to know that you’ll be losing Apple a ton of sweet, sweet pure-profit revenue if you succeed. If it would make Apple 100 million dollars in profits to fix it, especially for a neatly encapsulated problem like App Store, where it wouldn’t be that disruptive to just rip and replace the search engine, Apple would just fix it.
All the Mac and iPhone search incompetence, it’d be revenue neutral to fix, and not lend itself to flashy advertising like “liquid glass” does, so that’s why that’ll never happen.