That is not acceptable. The L key is not reachable with either the right or the left hand. The right hand is on the mouse-- it has just right-clicked. The left hand is on the left half of the keyboard. There is no way to reach the L key without looking down, reaching across the keyboard, then resetting yourself. For every single link. This is not acceptable for someone who has to copy hundreds of links in a day.
Copying links, even hundreds of them a day, is a perfectly acceptable use of a web browser, and there is now no usable hotkey to do it.
This is NOT resolved. Firefox's key to copy link has been removed. That's not acceptable. Copying links is one of the most common internet tasks. It's not an exaggeration to say that it's part of the purpose of a web browser.