Sorry, I'm new to SE, but I've noticed that the "Plugins" tag is defined with respect to DAWs, and does not include video applications (editing apps, compositing apps, 3d animation apps, etc) in its scope. Rather than adding video stuff to its scope, I think it might be more helpful to change the name from "Plugins" to "Audio Plugins", and create a separate "Video Plugins" tag. Is this "meta" area the appropriate place to recommend altering the tag name? Is it even possible to alter a tag name? Would it just be better to expand the scope of "plugins"?
This is the appropriate place to offer suggestions and ideas for changes to the site.
On beta sites like this one, you need 150 rep to create new tags, and 200 rep to edit a question's tags. See the privileges section of the faq.
As to your suggestion in particular, I agree that the tag wiki either focuses the tag where it shouldn't, or is just named wrong given what the wiki describes.
My thoughts here would be to generalize the plugins tag. It should generically describe a software editing component.
I think any question that required the use of the plugins tag would already be otherwise tagged for audio or video, or it would be obvious. (something like premiereplugins wouldn't require video-plugins to get the point across).
I'd be more than happy to suggest an edit to the tag wiki. I'll wait and see what others think about this first though.