> By this logic every single company on the planet would be a single-product company.

This is absolutely not true, and proof that you completely misunderstood what I said.

You took an upmarket B2B infrastructure company and compared it to a low-end B2B/B2C software company. That is a completely different type of business.

Cloudflare launches new products and offerings all the time - and all B2B within their market space. The difference is that if they did what you suggest (make a Lovable), it would put them in a position of competing with their own customers, and it would have a chilling effect on selling more infrastructure to other companies who would then fear competition as well. It's not that they can't do it. It's that it is not wise for them to do so, and it's a different type of business entirely.