From my own experience which may mean little to nothing...
As exercise intensity goes up, NEAT goes down. Which would make sense because you're tired.
So for athletes who are in energy balance as well as doing long-duration and/or high-intensity stuff, EPOC can account for quite a bit?
Not "and/or"... and.
Those would be pretty brutal workouts just to be able to eat a little more and it's not like you can do that sort of thing every day. I don't think it's that relevant for most. I guess that's pretty much what Lyle already said in the article though.