Few startups - unless they're extremely well funded and have leadership with backgrounds in research and the technical domains in which they're specializing - invest a fraction of the R&D tat would be necessary to improve the tech. In a best case scenario, someone external publishes an innovation which the company can pivot towards to save their butts.

For everyone else? Might as well light piles of millions of dollars on fire.

Complete failure of the innovation system to rely on ego-driven founders with no technical background making risky bets with low probability of success.