Correct, but over time, Turkey would find their internet is progressively more broken as people switch over to IPFS.
More importantly, I doubt the censorship-efficiency gains would be improved much by banning IPFS, since nobody really uses it yet, and I suspect selling the "anti-censorship" angle will get more non-anti-censorship adopters (i.e. people who just use it for performance gains) in non-Turkey places, compared to staying silent on the anti-censorship angle of IPFS. And more widespread non-Turkey adoption means more pressure on Turkey to allow IPFS.