But table saws are a replacement for manual saws. Table saws weren't invented first. Table saws fulfilled a niche use case for sawing. So by that saw stop is a replacement for a manual saw.
If you've ever used a hammer, a tool that has been around for tens of thousands of years, you will know by it's very nature of its operation it is a danger to thumbs. Trying to think that you can do "on an iPhone" and start with the assumption that a hammer fulfilling the functions and utility that it has and has had for 10,000 years cannot be a danger to thumbs is an erroneous thought and it shows the height of hubris.
Can you have tools that fulfill some of the functions of the hammer that are not dangerous to thumbs? Absolutely and we have those already. Any of the automatic nailers have built-in safety features to prevent accidents. Sometimes people disable those safety features because they do cause problems in legitimate use cases but they are built with those safety features. This would be analogous to saw stop which works in table saws which is a very limited saw.
Just like a table saw cannot fulfill all of the functions of a hand saw. A device that pounds nails or other things that has features to prevent it from accidentally hitting thumbs would not be able to fulfill all of the functions of the hammer.
From what we've seen with saws, this is your example not mine, all of the electric saws that have ever been built have never been able to eliminate the usefulness or utility of the simple handsaw which is dangerous to use. So where is the hubris to say that because you can invent a safer nailing device, which they have, it will somehow supplant and replace the hammer? The evidence says that's not the case.