I think what you'll find Enlil, is that when you play it, you'll get a lot more of the 'good' from PES 2011, with a lot less of the bad, as well as some clear improvements which really have to be felt to be believed. This game is not perfect - and it's not where I would have hoped football games would be 6 years after PES5 came out - but it's a pretty good effort considering where PES was two years ago.
As video teasers go, I think those are pretty appalling, in all honesty, and actually, if I was sitting where you were, I'd probably say many of the same things. I doubt anything will convince you to the demo, which is fair, but I think the demo will convince you. Here's hoping I guess