Picture viewer systemwide option

I know we can add DO picture viewer as systemwide default viewer when using "open with" or some reg-entries. But why you don't simply add it to "default progams", where we simply can check the desired filetypes like in other viewers (e.g. JPEGView)?

Of course adding a view types is not that much work, but first I need to have all kind of pics to register (I want to to have a fully configured sys) and it's just a comfort-thing e.g. on a fresh install (like after a Creators Update release).

It's mostly because plugins make it difficult to be sure which extensions to take over, and it's better to not do it than to do it and make a mess.

Viewer plugins handle a lot of extensions you definitely don't want double-clicks to send to the Opus viewer, at least when outside of Opus, but some that maybe you do. So we just leave it up to you to assign them as/when you wish.