While I had the same thought at first, this post delivered on a well documented reverse engineering case that should be perfect for the intended audience here. Which is why I think your tone is out of place.
In hindsight I see that my post might look like sarcasm, but it's not. I forgot to mention that for some reason on my MacBook Air when I hit the power button the computer sleeps and won't wake up so I have to do a hard restart - so this behavior really is very annoying to me even though it's infrequent.
Fn and Backspace are at opposite corners of the keyboard, requiring a two-handed chording. I guess any situation where you want to combine Delete with mouse use.