Stewards report says "all evidence was considered", if the betting reports show some new evidence then the case should be re opened.
I have never seen wheels get locked together that tightly before, was it accidental or was it deliberate ? It's not impossible for that to happen, just very rare. It is almost getting to the stage where recording devices need to be put on each driver during the race just so stewards can check what is being said between them .
With social media the way it is now, it is easy for disgruntled punters and armchair driving experts to start and spread rumors about fixed races and many people will just believe it. Hopefully stewards will fully investigate the incident and clear up the facts.