The frustrating thing is how long a lot of this falls through the cracks or gets ignored.
I got a transfer once that was so bad that the HEMS crew basically arrested a floor stable kid with completely unnecessary interventions, fortunately we were able to recover them and they didn't have any long term deficits. We documented our concerns immediately and our CMO ended up addressing them with that company, I don't think anything ever came of it. Better is that the crew then falsified their chart, and in a way that still didn't make sense.
There are many issues that are systemic. I sit on several committies that look at EMS, nursing, and medical practice both in our hospital, throughout the system, and to a limited extent externally. There are also some clinicians who are just bad apples, they are rare but definitely out there.