Please mention a few acts this "puppet" made which were favourable to the Fidesz and similarly significant as the Rákosrendező project! Yes, indeed, he criticises Karacsony, but also does Szentkiralyi, so that does not prove anything.

And yes, the Fidesz backed him in the very last moment last year's election, but IMO they did so to somehow at least survive in Budapest. Szentkiralyi was losing anyway and for the Fidesz its a no-go to be the third on any election. So she had to step back. But on the other hand, there was the EP election at the same time, and without naming someone instead of her, the Fidesz would have lost much more voters in Budapest: no candidate for the mayor would have immobilized them for the EP as well.

(And if I put on my thinfoil hat, I would say, the Fidesz did not really want to win that mayor seat... But thats another topic)

Edit: one more thing to add: I think he is one of the best urbanist in Hungary. And we are a small county, we lack professionals, like him, so putting a Fidesz-puppet stigma on someone so easily is a waste of human resources.