Again, we lack any info on where the cyclist struck the vehicle, where on the roadway this occurred, and any meaningful measurements (that would be present in the factual diagram). As such, I could not possibly venture an independent guess as to the cause of the collision. However, assuming that the officers investigating the collision were trained AT LEAST as well as I was (and probably better as they may well have had the recon class which I have not yet had), I can only presume that their conclusions were sound based upon the evidence.
And, yeah, the suit listed numerous parties including Does 1-50 ... it's a standard shotgun approach for such things. Sue the world and hope for a big settlement from the deeper pockets in about three years.