When politics meets technical decisions
From the point of view of today's technical assessment this is the wrong decision. This assumes a benign China - us techies don't like to think that people are nasty (with a few exceptions).
From a much longer political decision of international geopolitics you might get a different answer: depending on how you value human liberties and your view of Chinese political ambitions.
If our UK politicians have taken a long view I am very pleased at this rare event - irrespective of them being right or wrong. If they are just bending over for Trump - I am not pleased.