That functionality has been around in Chrome since 2013. Using it now for the Evernote web clipper introduces some extra complexity, as well as losing usability.
In Safari, for example, the traditional Evernote shortcut (` - the backtick) still works - just like it used to in Chrome. That's no longer possible in Chrome now, using the Chrome Extensions keyboard shortcuts - you have to configure something like 'Command+1') - the simple, single-key shortcut has gone.
The UI for managing Chrome extension keyboard shortcuts is hard to find, difficult to use and is also unreliable (I had to wipe out all my user profiles and uninstall / reinstall Chrome to get it to work).
I understand from your support team that the new Evernote Web Clipper is a completely fresh product, new from the ground up. It's a real shame that the development team weren't able to match the capabilities of the tried-and-trusted earlier versions. I wish there was a way for me to go back to the previous version - sadly, even that is not possible. Has this new version been released too early?