I think this was their plan anyway, to release short burst clips to mull over and talk about, I can imagine that slow drips of the same will come leading up to release showing different aspects of the game.
http://8bitplayground.com/podpress_trac/web/17963/0/TheWinningElevenShow_E3_Impressions.mp3
this is the 8bit playground 3 hour blog of hands on, have a listen, very balanced views with some fifa comparisons (nothing childish and fanboy), this combined with trailer and screens doesnt make me any less interested to spend another year with pes.
The negativity elsewhere is mainly all about expectation people had assuming this was gameplay footage IE and entire game being played or something, yet it was always going to be less of that. Also people venting another year who have built up issues with konami from early pes and just want another year to use as a punchbag.
Ignore the noise, and focus on what you liked from 2014, so far its looking good.