"Long March 5 intended to carry the Chang'e 5" "collect..specimens..Mooon," failures..unwelcome.
I reckon Bubba has it about right.
Also especially galling with the Indians having gotten to Lunar orbit first.
Note though that LH2 makes a lousy fuel for ICBM use, unlike hypergols, which served the US Titan 2 well for decades (and still fill the tanks of many of the Russian fleet).