Probably because 4 of 13 want 1 good thing another 4 a different good thing and the other 5 something else.
Some will not vote for what certain others want even if it may be good as it doesnt suit them so a lot of what could be good never gets voted in.
So they come up with a paper over the cracks half baked idea thats nearly good but not quite but is one they can all vote for.
It all rumbles on a little different but not quite right and they do it all again next year....