The third video down on this NBC story shows some wider angle shots of the crash site. Whilst not absolutely conclusive, they point to a relatively wide debris field but with major pieces still intact.
None of the major pieces appear to show the many small punctures associated with a fragmentation missile such as those clearly visible in MH17, and which would be typical of a missile required to reach this plane at its FL.
This would tentatively indicate some mid-air break up, but not due to not missile and so point towards some structural issue or major control surface failure, which is relatively consistent with the data we have from FR24 (lots of others have already expressed the caution that FR24 cannot be taken as fact)
Sad for the families, we pray for them and we all wait for the full inquiry results before we will really understand what happened. The rerouting of other aircraft a sensible precaution, whilst we all remain in doubt over the cause.
Egypt: Russian Passenger Plane With 224 Aboard Crashes in the Sinai - NBC News