Totally agree on the phone size thing. I can't imagine someone grabbing my small phone out of my hand in a swift move while texting one handed, best case scenario they knock it to the ground.
An e-bike already moving at speed on a roadway is going to outpace pretty much any human very fast. You have no chance to catch up in the submission post's described scenario, IMO. Once they're out of sight the game is over.
In the case of actual e-bikes that are driven on the roadway, you would have to be weary of one unusually closing in on you. I don't see how one would miss that, also you shouldn't even be standing in reach of the roadway.
But if you mean those e-scooters, then those aren't significantly faster than bicycles and would have to yield to car traffic soon enough for me to catch up on foot.
I mean E-bikes on roadways. In the posted article the author is replying to a text while waiting to cross a roadway. Common enough scenario, I do that all the time and don't flinch at passing bikes because bike phone snatching isn't a thing where I live.
An e-bike already moving at speed on a roadway is going to outpace pretty much any human very fast. You have no chance to catch up in the submission post's described scenario, IMO. Once they're out of sight the game is over.