I don't know why you're being downvoted, I fully agree personally, my only concern at least would be that once the transition project gets started, if the wrong "loudest" vessels in government need to make some noise about overspending to distract from other things, maybe this project might be used as a scape goat.

I can see it already actually : "The FAA was working fine and yet they want these X billions to have shiny new silicon valley machines, paid to big tech by the tax payers"

As horrible as that sounds, I don't think many people would say that it couldn't happen.