It could depend on what is considered 'a pivot'. Some companies start out with grandiose plans only to find out that they don't have enough money or other resources to develop, market, and support 'Plan A'. So they take a piece of what they already have working and build a product around that to 'prime the pump'. Before they know it, the pump primer turns into 'Plan B' and they never get back to the original plan.

I have experienced some of that with my current project. It is designed to be a global distributed data management system, but I am currently marketing it as a simple data analytics tool because that is the part that is working the best right now. https://www.Didgets.com