Can't really see any issue with any of the things you describe tbh.
Describing behaviour as naughty or unacceptable is fine imo, rather than the child itself. Usually a reason or explanation accompanies this. In your OP you do say it is the behaviour that is labelled, not that child.
"Move out of the way" - depends on how said and tone, if asked already in other ways, etc. I joke with my Y2s "Come on, Shoo, Out my way..." type thing. Never meant in a ride way, and afaik never taken that way either.
And yes, I'd say it to an adult - imagine I have my hands full, trying to get by somewhere a bit tight, people in way, I'm in a rush - yes, I might call that out tbh, probably a please called afterwards, or a thanks.
"More resourceful" - well, maybe they do need to be! So long as the child involve understands how to do so then again, where is the issue.
The Cloud with no warning - well, a little harsh maybe - but how do you know there was definitely no warning? Had they not had instructions beforehand? Are you sure it was only once he did it? What does going on a cloud mean? Is it a big sanction or can it be worked "off" again within a short while?
Whilst most 5 year olds are very capable of remembering things, almost every child I have ever met, especially the clever ones, are also very good at remembering just the "right bits" iyswim.