Yea, that’s a good point! I’m using Windows and have used that hotkey in other situations when I have wanted to avoid HTML formatting to be pasted. It’s quite a good workaround, but I can still see a use case for wanting to paste other HTML formatting, but keeping simple URL links as plain text.
For example, I might be copying and pasting a text that contains multiple links with different “styles”.
Some links would be like the one I mentioned before:
[https://kielikompassi.jyu.fi/opetus/natfrasch/tehtavat/hr_sanaj_relatiivi1.htm](https://kielikompassi.jyu.fi/opetus/natfrasch/tehtavat/hr_sanaj_relatiivi1.htm)
But others might be different:
[Swedish exercise](https://kielikompassi.jyu.fi/opetus/natfrasch/tehtavat/hr_sanaj_relatiivi1.htm)
If I copy all of the links at once, and paste into Obsidian by pressing Ctrl + Shift + V, the latter link will become just Swedish exercise with no url at all (= not a link anymore).
But your proposal is a really good solution for many cases, even if some edge cases are uncovered. 
P.S. My Obsidian version is 0.12.19