That’s a rather shallow and naive perspective. I’ll try to keep this short, but the overt blocking oriented “censorship” ascribed to China, Iran, or Israel is actually not at all “state-of-the-art”, it’s an inherent rather coarse approach to censorship.
If you want the true “state-of-the-art“ you can look no farther than the USA, where the “state-of-the-art” is such that people don’t even realize it’s censorship, let alone that anything is happening at all.
China, Iran, or Israel may or may not engage in censorship at a kind of high level that is apparent and observable; however the censorship in the USA and by extension in its various vassals of its empire, is far more sophisticated and base level to such a degree that the system, the whole society is the censorship mechanism, censorship is not something done to the system, the system is the censorship. That is “state-of-the-art”!