I’ve posed this question before and there were some differing opinions: https://forum.inaturalist.org/t/spotting-copyright-violations/3287/72
Staff never weighed in.
Without a scale, spectrograms should not count as evidence of an organism, and the Merlin app does not include a scale on it’s spectrograms. There have been numerous threads discussing why unstandardized spectrograms shouldn’t be uploaded and why they don’t count as evidence. So at the very least, I think it is absolutely appropriate to mark no for evidence of organism.