Never a bad thing to answer more questions :-)

It all depends on what they are trying to rate here. I am not sure what it 'means' when you are number 1 or number 20. When criteria per theme are clear, unbiased and public we can actually say something about it. For me the value of this is only in the relative score on a theme basis, not the summed-up rankings.

Same with for instance something like Coingecko (https://www.coingecko.com/en). The overall score doesn't mean more that the score per theme.