A fair point. However, reading the OP back, it seems to me that they aren’t dismissing “forever” as success. They are only stating that its not the only acceptable definition of it.
The way i see it, some things that require never-ending commitment to be deemed a success and others don’t, but that’s not how society sees it in general.
I think messages like the one in the post are a good thing to read and think about how they apply to your own life.