Hint: neural network and AI are not synonyms. You were corrected after conflating the two.

> If the only technology you look at is Bitcoin, which is stagnant and hasn’t progressed in many years, of course it will look like nothing in blockchain technology has progressed.

This post is about Bitcoin so it’s unsurprisingly discussing that, especially since that’s where most of the usage is. Neither of the things you mentioned solve the underlying architectural problems inherent to blockchains, although the ZK stuff does help with privacy somewhat, but again I would remind you that the comparison to the early internet still runs afoul of lack of demand for blockchains. People didn’t need a FOMO sales pitch to see that going online was useful; for a payment system to become popular it needs to offer an advantage on price, performance, or security – the ceiling for how much most people will pay for a cryptocurrency is whatever it costs to use Venmo or Square so the focus needs to be on outcompeting the status quo and setting realistic expectations for how much shaving a point or two off of a transaction price will really change the world.