I'm not heartless or mean. But I believe any time this happens and humans try to help it just makes things worse. I wonder how many times this has happened around the world and it either worked or the whale died? Stress will kill quicker than any ailment in wild animals. This whale was in waters that were basically poisonous to it's system (fresh water) and being chased for 2 days is the most stressful thing I would imagine. I had a pet bird that was severly attacked by another bird. It's injuries were taken care of by the vet but the stress of the attack, surgury, recovery were to much.
You are right... htey should have just left it to get churned up in some boats propellor or let it beach itself...
Had people not interfered it most probably would have made it. absolutely.
So tell me, you find a fish (yes, i know whales are mamamals) out of water, you going to leave it and let it find its own way back, or are you going to help it out?
Is that to say that all human conservation efforts should be abandoned as they are doing more harm than good?
Get real. These people tried to help. It died, but at least they tried.