All posts above, starting with #31 by AxG, are correct in some way - casual viewers may indeed think the '2' is the same. Few people pay deliberate attention and will only have a vague recollection of its history, let alone of what is actually on screen today.
I received a lot of flak when I originally tried to explain in 2007 that the current '2' is not the same figure as the 1991 Lambie-Nairn '2' - looks like things have improved, somewhat
Jonny has the right idea. It's not just the '2' that has changed, it's the concept: it was designed to itself be solid - something that could be picked up, dropped, moved. So being stuck as a 'window' misses the point of what the '2' it is based on was actually designed for. There is very little that conceptually connects 1991 with today,
Paper Cut Out was closest, perhaps - but Lambie-Nairn quickly realised it 'didn't work' and that was the very reason it was dropped early. So that example should have been a 'warning from history' that it was a bad idea - but AMV clearly hadn't noted it when they were coming up with ideas...