One, different systems. Two, when Xi took out senior members of his opposition, it absolutely prompted concern abroad. There was no ensuing rioting or breakdown in the rule of law, so calm minds prevailed. This is a rando lawmaker being taken out for tweeting, not a rival power centre; it looks petty and stupid.
Frankly, the whataboutism in response to this article, on this thread, make it sound more like Russia or Turkey than China or the U.K. If the people aren’t in touch with reality, the government will be stupid.