I'd still consider it a bug. Programs should minimize configuration changes on the host OS. VMWare doesn't have to add and remove items continuously in order to achieve its current functionality. Instead, it could add a configuration check. On each launch, it can exit quickly if it isn't needed. If performance is the consideration, it can be accomplished in a few lines of shell script or with a small stub binary that doesn't load additional libraries. Either option would have an imperceptible performance impact as long as it doesn't introduce any significant sequence dependencies in the launch configuration.
