I have seen a lot of sprinters try this – for two reasons … one they look at a 10 sec sprint and think a short all out one off burst in the gym will facilitate this and second because they are like all humans inclined to be a bit lazy!
I have never seen this training producing any real long lasting gains – at a muscualr level the fundamental characteristics of weight lifted time time under tension consistently hold true and at the neural level you have to sufficiently boost hormone levels to make a lasting change – something that again requires enough training stimulus
Old men are always opinionated so my opinion – the HIT philosophy in its 1 set to failure form is crock