I agree with both the previous posters. You have to have winners and losers I think, and you have to have competition, because to be honest all kids compete in everything. But what the emphasis should be on is participation, and improvements, and thus the Go Games have merit with the conditioned games.
Normal games are too easy to dominate if you are the big or better kid, and it's too easy for the smaller, or weaker kids to hide. Small sided games, and modified games, allow everyone to develop, including the good big kid as well.
Also, a hugely important thing is that the parents see these games as so different to 'championship' that they are used to , that their own behaviour is much better, and focuses on the enjoyment of the game, as well as encouraging their youngsters.
I went to a club here in Tipperary one time, and it was an Under 8 'blitz'. Under 8s. Each club was allowed field one team.
13 a side.
15 minutes a side.
3 games + a 'final'.
Each club had about 10 subs. I'd say some subs saw about 15 minutes action in total, and when they were on, they just stood in the corner doing nothing.
It was an absolute joke. Would have been a great thing at under 16 or minor level, but an absolute horror show for under 8s.
The blitzes now could have 10 games of 5v5, 6v6 or whatever going on at that same time on one full sized pitch, with 120 kids or even more all playing every minute. Each game counts, and each game has winners and losers, but there's no 'final' as such.
In short, I like the concept, but I agree that there is a place for the competitive element. Kids are not stupid, they know when they win or lose, but I think it's as much to drive that point home to the parents and mentors as to the kids.