I agree, except that it seems dynamism is almost restricted to digital tech. I wish tech would spread its dynamism a little better into legacy industries, and give some productivity gains/disruption to those areas.
part of the problem is that the remaining set of industries is pretty tough to make dynamic using technology simply because the explosive market size isn't there for various reasons. if you wanted to disrupt aviation, for example, a plane takes tens of billions of dollars to bring to market, and an airline requires outlaying billions in capex on planes.
I do wish there was more dynamism in the US airline market though, the mergers forming the big three were probably a mistake
But I understand what you meant