It's very much like a pelanty shoot-out, both require anticipation (from both sides) but I suppose the difference is nobody ever 'expects' a goalkeper to save a pel, unless Gervinho is the taker, I guess. The ball was lofted enough that it gives both players thinking time, one to their detriment, one to our benefit. As a goalkeeper your job is to make it harder to score but you don't do it to the risk of leaving the greater area exposed. To the further the idea of it being cat and mouse - look at RVP's attempted chip of Abbiati.

A question though: why do you think the Everton one is tougher (to execute)? I see it as that the one RVP took the one against Liverpool on is not easier to go nearpost because you're side-footing a lofted ball that has travelled for a few seconds. The appreciation of touch to be able to do that and put it where you want for me is far tougher than putting your laces through one. The Everton one is more spectacular though.