Are you sure your memory isn't just a bit hazy from last time that happened? I think there are credible reasons to believe the lab leak never happened, but anyone could be forgiven for losing some details in two and a half billion years.

The super algea we are looking for here, would likely have no chance in the wild anymore, because to optimize some desired traits (thriving in a protected, stable environment) usually means giving up on other traits, which will force them down when they have competition. (same argument applies to GMO plants)