Research on corona viruses is surprisingly common. It's entirely possible for it to be a coincidence. We have/had several labs in the USA studying coronaviruses prior to COVID. Even had our own leak scares.

Unfortunately free discussion is dangerous. It's likely we have over corrected but I'm pretty sure Jan 6th is evidence enough as to why people are being careful with misinformation. Conspiracy theories lead to radicalization and anti-government sentiment which leads to trump getting new soldiers in his militia.

But that page isn't trustworthy. It's used as a blog for the opinions of a group of politicians.

Didn't the intelligence community specifically state that it didn't come from the lab? Using official looking sources the wrong way could definitely be misinformation and misinformation is indeed dangerous. On a popular subreddit I can understand why they would be careful that way. I haven't read the page you linked but I'm betting it's outdated or something. Unless I'm misremembering but I read like a month or two ago that the CIA and other organizations agree that COVID did not come from a lab.