I disagree with this. From my perspective the system "as is" has gone too far in terms of being gameable and exploitable, to the extent that just on that basis alone I'm delighted I don't have to do it again come April. While I can and did take actions that contributed to success this time around, I think possibly in April and if not definitely for the next festival it'd be necessary to go much further just to get comparable results.
The basic problem is that they way they've set it up, from now on this sale is 100% an arms race - far more than it ever was or could have been before. If nothing changes then very quickly it's going to get to the point where it becomes unlikely to get tickets without to be blunt far more effort than it's worth - thousands of sessions, generated Queue IDs, it's all been covered in this thread over the past few days, generally much further across "the line" than I'm willing to go.
I do wonder how many headliners have come back to lower spots over the years? Discounting those who would then go on to headline again. (See: The Killers.)
I really enjoyed Travis's Pyramid Saturday night headline set at Glastonbury 2000. Very much like their new album. If they are free, I would love to see them return to the festival next year.