Selling more stock is usually a lever a company can pull when they want. So even if a normal company in normal times doesn't have a reason to do so often, they can if circumstances change. Tesla and some other meme stocks have been extremely aggressive about selling more shares into crazy valuations, and have raised immense amounts of money doing so.

Plus as others have said, usually all of the decision makers have a bunch of stock exposure and will prioritize their own financial gains over pretty much anything else.