I AM that cargo shorts-cladded dude on a hybrid cruiser. And some riders assume I have the corresponding skill set. But several seasons of racing taught me to hold my line when I'm around other riders, especially on a shared-use path. I admit I'm an outlier in more ways than one.

I've studied bicyclist crashes during my professional career (but fortunately not much by firsthand experience). Unfortunately, bicyclist crashes that don't involve a non-parked motor vehicle don't make it into agency crash databases or statistics, and so aren't studied in much detail. One of the few ways to collect this data with any accuracy is by analyzing anonymized emergency room admission data where available. ER data has in the past shown some interesting findings, including that motor vehicle impacts make up a relatively small percentage of bicyclist crashes (but with disproportionately high severity in some cases), but bicycle-bicycle crashes (which OP barely avoided), impacts with fixed objects such as poles and bollards, and bicycle-animal crashes (which the OP did not avoid, alas) are all causes of significant numbers of injury crashes. And that single-rider "just riding along" falls can comprise up to half of all injury crashes for bicyclists.