An extra plugin to be able to update another plugin is not exactly something that makes me happy. Almost everyone wants as few plugins as possible on the wordpress website and certainly no plugins that are only used to update another plugin. This should just be in the current plugin.
I think it’s an odd construction. Somehow I am disappointed about this, because I buy a plugin and can expect that it can be kept up to date without the help of other plugins via the dashboard or without having to uninstall it first.
I don’t want any extra plugins just for this purpose, I just want when there is a new version that the current plugin says to update without any detours, just like normal plugins do. Maybe you could make this possible for paid plugins like this?