I guess they dont understand what 'last' is referring to?
Compared to BACK, most people understand its to go back a menu/screen.
In the case of this, the LAST fuctions the same as a back button, going back to the LAST screen you were on.
I believe on live TV, it also brings up a menu of the last few number of channels, etc you were viewing.
The LAST button does that.. kinda.
If I remember right on the cable boxes, when you hit the last button, it went right to the last channel you were on.
On the Ignite, what it does is bring up the a list, showing the last X many channels visited, defaulting onto the last channel viewed.
Hitting OK, then will go to that channel.
So it is another button click, but doable.