Well, burnouts maybe interesting for someone but in the other hand it's almost always means a broken heart of a player. Imagine how many hours they spend on court, imagine the investment from the familly, all the good moments missed with friends because of the training and THIS for ONE dream which fades away. It's horrible I think.
I remember someone reported that Vika Kutuzova said she was finalyl happy with the AER because she felt exausted. That's reveiling how much from the body and the mentality the Tour demands nowadays.
It may suck a bit for the fans, I have a lot of faves which are under the restriction of the AER and I know how it feels, but for the sake of those players I think it's better for them to have AER. Like someone said.. it's better than nothing.