Maybe you should avoid generalizations that need to be carefully qualified just to become less wrong. This is such a broad statement about a type of business that can be almost any business that even before you try to make a statement about it you've almost certainly made yourself incorrect.

You have an experience that's valuable and you're presenting it to people; that's good and helpful. Stick with that. There's no need to try and apply it to a much wider audience than is actually relevant.

Everything dies eventually, whether you work on it or not. That statement would carry no information.

In contrast, it is possible to build businesses that scale and work for a long time without much intervention on the part of the founder.