The initial actions and cover up absolutely (edit) are the fault of the Chinese regime, but going from that to they are to blame for this can have no other effect than helping Trump, Johnson etc obscure their own complicity in this disaster.
It's a justifiable obscuration. I don't blame them for attempting to utilise it.
You can have your own brain and know Trump/Johnson have been terrible, but ultimately the core of the blame for absolutely everything to do with this is on China.