Similar to when pilots give an unrealistic estimate for JULIM, become number 1, then despite getting direct and pushing 310 on the descent to JULIM they end up 2 mins late and every behind gets shafted...
. This f@ckwit behaviour seems to be happening a lot lately - and it's just as likely to be a 737 as f100.
I'll be honest, I don't understand why, in this age of technology, you need to be relying on a verbal fix estimate. However, why not give aircraft unable to make their fix time a 180 degree vector to the back of the queue - I reckon that might sort out the problem.