it's an interesting concept, and i would think most athletes would have their point where they take this risk injurywise. most of us may never be back to a trials or a world meet if we ever made one. if you get hurt training, being there is an honor, you may never repeat, and it would be lame to say you qualified but didn't try. so i think you have to "get in the blocks" and go as far as the legs hold. which may be 10 yards then fall over and grab the hammy, to be real. but part of the honor is being there. which you don't get if you're not.
in terms of an ordinary meet, this would be stupid, particularly if this costs you conference or nationals or trials or olympics.
in terms of a handful of top elite athletes, this would be stupid, because they will have another chance. if lyles tweaks a hammy he's not going to the olympics or trials just to give it a go. you have to protect the moneymaker and trust you have another chance. so it's kind of a marginal tactic.
along those lines, to the extent we're talking DFL as tactical risk as opposed to DFL as injury consequence, it would likewise be dumb for an elite athlete but more viable for a marginal one. how much should an elite athlete "gamble" on tactics with DFL risk? that's more of a "6th place finisher's game." that you go to the lead so you get on tv or as a calculated risk that something amazing happens. but i would think the mantra of most elite athletes would be not to do anything crazy. jakob and hassan sit at the back of the pack and let the DFL folks take the early crazy risks. they save their energy and put you away later.