I also don't think effort can be recognised in some spaces; as a programmer, I often produce results that in the end, result in very few lines of code written, looking at the end result alone doesn't indicate much.
It's like looking at a hand carved match-stick judging the result as low effort, not knowing that they started with a seed.
The end result is never the code itself. In fact, the end result exists over time, and often the shape of the result in the time dimension is better the shorter the code and the more thorough the intangible forethought.
But yes, I don’t know how clear must I be about it—this is learning (for very young humans still psychologically immature), that’s exactly why it has to be spelled out that evaluation must be on the effort, precisely because it is never on the effort in any other activity in adulthood.
It's like looking at a hand carved match-stick judging the result as low effort, not knowing that they started with a seed.