It is wasted, because in this situation you’re forced to do it. If you end up not switching, all the time you spent trying something else comes to nothing. If you do switch, you were still forced to spend a bunch of time looking for something.
For me, "nothing" is rarely true. When I've had to learn a tool that operated in a different way, I've often come away realizing that I could think about a common task differently, or that there are capabilities I didn't realize I wanted.
I this case I'm thinking of domain-specific tools meant for creation or curation, like an IDE, image editor, word processor, etc. That wouldn't apply to bureaucratic paperwork-type tools, where learning the site is typically a one-off and is pure waste.
Yes, I agree, “nothing” won’t always be true. But I felt like the idea came across and that having to overly explain and nitpick my own clarification was unnecessary.