I don't fully understand where all this wild speculation is coming from; the story that's been coming from her coaches is that she's been having knee pain for the last couple weeks and not running much. The bruises should be a result of physical therapy and nothing to worry about. Honestly seeing her dnf isn't surprising at all, from what I've heard, she wanted to run and her and Ihmels made the judgement call to go for it, even though they both knew she wasn't 100%. Combination of extreme competitiveness, and probably wouldn't hurt her too much more so it was a justified risk in my opinion. This was also nothing to do with too much time on an indoor track, bsu distance hasn't touched their indoor track all season to my knowledge.
This isn't the end of the world, just an injury happening at the wrong time. Ihmels knows what he is doing despite what letsrun thinks.