There have been loads of posts about this and a whole thread dedicated to it somewhere on here.
The issue is a £5 tournament finishing at 1am on a school-night, and the fact that after 4 hours play, you might only win £10 for your efforts.
Some people were advocating reducing the clock, reducing the chip stacks and also the possibility of increasing the buy-in.
I guess that the new chip stacks are a test, and it"s not really a painful test. I"ll be out within the hour anyway...