I agree that the editor should consolidate the shortcodes, but the editor doesn’t have any control over whether the plugin adds more buttons (well, it can’t tell which buttons are from plugins).
I wrote a proof of concept for making a menu of shortcodes, and didn’t follow through on writing the petition for it, so you have done that now…
See What do you think about enhancing shortcode usage? which has a link to the plugin to try it.