It is weird even on a pragmatic basis. I accept as a concept that it may have been effective when we were a little less connected, but these days it seems like it is actively asking for a wrong kind of reaction from the population. Not to mention, the people you imprison for typing the wrong stuff online are likely now going to be way more radicalized than when they went there. Honestly, I just do not get that approach.
The problem here is you're not thinking like a state and you think this is a bad thing.
When you have some radicals out there causing problems that's an excuse for you to spend billion making your military industrial complex buddies rich. It gives you an excuse to crack down and take out anyone you like because they "are the radical enemy that's dangerous". And Western governments and companies will gladly sell you weapons and technology to monitor and blow up anyone under your rule that you want.
edit: added which; when compared to