I don't know that it is better for closed source projects, but regardless open source has an escape hatch closed source doesn't. If something goes wrong, you c

I don't know that it is better for closed source projects, but regardless open source has an escape hatch closed source doesn't. If something goes wrong, you can maintain it yourself, or fork it. I've done it myself. That one property along is enough if you want longevity, open source is always a safer bet than closed source. In my case, I guess it extended the projects life by another 20 years.