His articles are usually pretty good, but I think he is a tad optimistic. I dont see hypersonic aircraft and LEO spaceplanes in China's near future.
Like Amace said, he does a bit of scare mongering and extrapolates some crazy results from a few photos and aerospace models.
That isn't to say China might not be able to produce hypersonic aircraft an LEO space planes though -- shenlong is getting close and the abundance of evidence in research into hypersonics is encouraging.
I don't know about those nozzle photos either, how could we have missed photos like that?
Also, as strange is the supposed test railgun photo (OT I know, I'll keep it brief)
Compared with the US navy's general atomics one, it looks quite favourable considering the former obviously isn't dolled up for display: