Never fill up from a drum at the flying school but that would increase the probability factor. .
Overall, I can't say you are wrong - just trying to keep it real. . I don't want my students getting so stressed about the fact they won't be able to control a sudden engine failure in the hover that they make a mess of something else.
Rotorfossil - I would guard against telling people what they should be able to do. It might be tempting for someone to show you that they can do an EOL when perhaps they are not quite ready.
Whatever your rating, at our school it's the boss that decides who can do EOL's to the ground. Fair enough I think.