Oh! One thought crossed my mind.
In the article, the author jumps around between phyla, which does involve a couple of broad strokes that might give the wrong impression. For example the author speaks of the spider as if there was cruel treatment, where that's not quite the same world. I mean, I LOVE my jumping spiders and the one link I did post here (Nicky Bay's site) is all about arthropods and I marvel at them, but occasionally a photographer gets a sad voice from a scientist when they discover something interesting and just photograph it rather than 'taking a sample'.
I think the real lesson here is 'financial motivations rather than intrinsic ones are bad overall', and it's best to understand the behaviors of the creatures themselves before rushing to judgement one way or another.
That being said, while the frog one was a bit cute, in general those shots are kind of sub-par compared to the stuff you get from the ones who it for love of the little critters.