Tech investors are almost totally unequiped to do the necessary DD. They either therefore go for plays that are easy to understand, largely computational exercises or in the rare cases they do go for something higher risk, they back something crazy (e.g. Theranos) because they don’t do good DD.
Getting an “expert” to vet the play rarely works. Because tech VCs don’t know how to choose good experts.
So most of (all?) these plays will ultimately fail. It won’t matter much to seed round investors though, because they’ll take 10 years to fail and they will likely have at least partially exited by then...