technocratic governments are great when a strong leadership is present that also listens to the technocracy. But it's important to realize that technical skill does not correlate with political skills like consensus building, horse trading, compromise, etc that make governments actually work.
What will happen here will strongly depend on how good these people are at actually playing the game of politics. I don't have any particular reason to be more or less optimistic than any regular slate of politicians.
The regular state (at least in the US) is that the majority are actively hostile to the technocracy, and would fail a 3rd grade science test. The best of them might actually be able to pass bachelor-level science tests and sometimes pay lip service to scientific advisors. They're never more than about 25% of congress.
So, it'd be a big step up if we had leaders that understood basic elementary school stuff stuff like bleach injections are not medicine (vs Trump), or that draining the California delta would be an ecological disaster (vs Newsom - https://stopthetunnels.org/).
Whilst politics always exist, how deep it goes varies.
It's entirly possible that the experiment fails because of politics, but it's also possible that the amount of politics is simply lower because people are simply more reasonable.
The last part will come down to vested interest and ideologues.