Very simple: there's insufficient evidence. Which doesn't mean it's impossible, it only means we don't know as of yet.
The indirect data are the following:
1. There's a virology lab in the vicinity of the outbreak
2. It is
unheard of that asymptomatic carriers drive a pandemic, which could be a major selective advantage for a lab escape.
That's it. Getting lab employees hospitalized with COVID-like symptoms isn't too informative as this took place at the height of the flu season. So we'd have to know their flu immunization status, age and the exact number of lab workers to be able to tell whether this is a clue or not. It's obvious that the CCP wouldn't cooperate in the full investigation, so this is where intelligence agencies will have to do the groundwork. Until then, it should be considered a natural occurrence until proven otherwise.
I'll have two comments on the big picture item:
1. Regardless of the outcome of the above investigations, pandemics have been identified a major national security risk since the late Bush era. The Trump admin's response has been an absolute national security failure and should even reflect worse on them if the accusations of the virus being man-enhanced turn out to be true. It's especially ironic that the only success they've had was with the vaccines, that relied on the previous admin's
infrastructure and the succeeding admin's execution.
2. It's baffling to see how little politicians understand what the WHO does.