My own experience: Don't ever trust the Chinese government on issues that could potentially involve the reputation of the party. Note that I'm not saying don't trust what CCP says, ever (sometimes they actually do good things) - just not on issues that involve anything to do with how the world might perceive them.
Which is exactly what this issue is about.
That's not to say we have compelling evidence that this was a lab virus, either. I think, for me, it's a, "we don't know, but I wouldn't be shocked at all if it was a lab virus".
If it was intentionally released, it’s even more important to know by who and why.
Because it doesn't matter if it's accidentally released from a lab, if you're going to catch it from a bat cave anyway. You haven't eliminated it from the world.
So yeah, it is important to find out what the origin of this virus was because whatever the reason was we want to ensure that it isn’t the same reason for the next big pandemic.