Should we care a lot about the safety and security of places where dangerous infectious diseases are studied? sure!
I think we should care A LOT MORE about our [apparent total lack of] ability to quickly deploy effective public health responses to new infectious diseases (regardless of their source).
Maybe it was an accident at a sloppy lab, ok, so labs on the other side of the planet in sovereign countries we do not control might make mistakes. We should get better at responding fast to save lives.
Maybe it was a sinister bio-terrorism plot. We should get better at responding fast to save lives. Bio-terror/warfare plan looks a whole lot like a good public health plan IMO.
Maybe gasp it really was from bats or something. We should get better at responding fast to save lives. This stuff DOES happen.
Maybe s/.*/I don't care where it came from/g. We should get better at responding fast and saving lives (my opinion).
In particular, if true that it 'leaked' ... it's not like other nations are leaking pathogens which kill millions and cause 5 Trillion in destruction. It would literally change the geostrategic equation overnight and be seminal, defining world event certainly bigger than 9/11. On the scale of a WW.
If it was quasi-intentional (this is definitely not true, but since you speculated...) then it would be an act of war and the most damaging attack on the US (and other nations) ever. The US and the world would have to go to war with China over this. (Again this surely is not the case).
All while the US/EU/Rest of Word 'get better' at the above.