I dunno...the more I look at actual tournament results, the less I feel that it's an actual problem in practice.
Just looking at the UK results, there were 234 untimed matches. Of those, 43 went to time. Of the 43 that went to time, 28 had a point spread of 30 points or less. Of those 28, 5 had a point spread between 21-30, 13 had a spread between 11-20 and 10 had a point spread between 0-10. (there was one tie).
Granted it's only one regional, but I'm curious to see what it looks like once more regional data comes in.