Earlier quoted context omitted.
Whether you have a single year of experience 10 times (or whatever ratio you experience) is orthogonal to whether you work for the same company. Being employed as a programmer may or may not gain you new experience (which is what matters if you are to be a good generalist). Whether it does depends on whether you are _doing things new to you_ while being employed.
Doing new things is experience. Repetition in one area is also experience. This concept you're describing is just made up.
Also, all concepts are “made up”. By definition.