The image of the accident site could support that theory, it show what appears to be a low angle of contact at high speed. The wreckage trail was over 500m long (according to the news), and the image shows that the breakup occured mainly at the end of the sequence.
I would have though that an EFATO scenario would have shown the same sort of angle with a much shorter wreckage trail.
A question for the much more expirienced than I, could an initial over rotation on lift off exacerbate the illusion and thus disguise the fact the aircraft was actually settling?