The headline seems a bit click-baity, but IMHO it's a valid question, and I salute Stout for wearing moto body armor-- but of course I'd say that, because I do as well. I'm on blood thinners, so a hit that might be a scratch to someone else would send me to the ER, and a hit that would send someone else to the ER could send me to the morgue, biggest danger is internal bleeding, so I'm happy to have a little extra padding.
--> For someone with more experience riding motorcycles than bicycles, it may well be that e-bikes are more dangerous. Doesn't seem like a nutty idea, I'd never thought about it.
I cannot speak for elevated risk relative to motorcycles. I've only ridden a motorcycle exactly once (Yamaha 850 or so) across the street to park it (in NYC where it wouldn't be towed) when my friend was too drunk to drive. Quite a spectacle, me wobbling back and forth riding the clutch as I careened across the street and my drunk friend stumbling besides me screaming instructions. (We should have just let it get towed.)
I'm veering slightly OT, mostly to join Stout in advocating for armor. Those of us who don't ride motorcycles are more likely to wonder, "How much more dangerous are e-bikes than bicycles?" This question has been asked and answered a lot here, but where I ride, I think there are two main vectors for accidents, and maybe a third minor one, I think:
1) People in traffic they wouldn't normally be in with an acoustic bike.
2) People on trails they wouldn't normally be on with an acoustic bike
3) Slight increase in speed for e-bikes relative to acoustic bikes
For Stout, who is used to having a bike that corner harder, and also having enough power to pull himself out of some hairy situations, I can see why he'd wind up in some very unfamiliar situations where his instincts are less helpful, and relearning new habits would be a challenge.
For the rest of us, we'd do well to remember that the increase in speed may be small, but unwise to ignore. My top speed on the Motobecane is 37.6 MPH downhill; none of my other bikes could top 30-32 on that stretch of road. The Motobecane is also far more stable at speed than any bike I've ridden before, but it's a little twitchy and floaty above 35, same as my road bike was above 30, and an accident at 35 is more likely to cause injury than an accident at 30. Many people here report top speeds in the low to mid-40s.
This is why I say YES to armor. It also makes me look like less of a target for bike thieves and thugs in the city, though I do frighten young children and those who don't understand the difference between moto armor and military armor!