Why? It is a new product (though based on the existing technology), a new model (cloud-based vs traditional Coverity on-premise), it is in free and unlimited beta, and we are soliciting feedback. Seems like a reasonable "Show HN", no?

It is indeed a reasonable Show HN.

https://news.ycombinator.com/showhn.html.

A new feature normally wouldn't qualify. A new product is fine, as long as people are able to try it out.

Not saying it's wrong just that Show HNs aren't usually for products made by established companies.

I believe the reason he may have found it weird is that Show HN were once about weekend projects.