They obviously didn’t think through before making that comment, so no worries there. Most people will know that some photos are hard to take - I’d ignore these salty guys and keep doing what you do.
Often I ignore the really bad photos as an identifier, but it really depends on if you can spot if there went any effort into taking pictures. If, like in your situation, you can see a lot of effort is done, but this is the best you can do with the time and materials you have, I’d never post a salty comment. But some people just snap a really blurry pic of a standing plant and just hope an ID comes up like on PlantNet. In those cases I suggest to put into a little more effort into taking the picture.
So I’d say: please don’t be fed up with iNat, keep contributing and ignore the keyboard warriors. I also think people should just skip the uploads they can’t do anything with. Sometimes there’s an expert who can ID a beast by a bad pic!