To be honest, even as a pro sony user (I think they are just better at making games that I prefer)... I was disappointed by Gamescom. To be fair to them, they did show/talk about a lot of games, but most of us watching want the big stuff.
I think they would have been better not doing a show and just behind doors, releasing info, that would have had a more positive impression.
Also I don't understand how they could think that people would be amazingly happy about the show. Of course they at least did one, and there is nothing wrong with indie games (I am buying a lot recently)... but most of the people who are watching want big info bombs... as this is what it's all about.
I also think they didnt present it very well (director didnt help)... if they did less talking and showed more gameplay (as long as the camera was on point) then it would have been better :)