Good point... and yet, by the same line of logic - just because a panther grouper, for example, will eat Cheerios and beernuts does not mean that all marine fishes (or even its Order alone: Perciformes) will eat and survive on Cheerios and Beernuts.
And the overwhelming majority of marine/hobby fishes are members of that Order and, as such, are more closely related to each other than (and more likely to have similar family traits to) what we call "filter feeders" or even "corals!" The latter still being dramtically different physiologically in so many ways.
The plastic ball example IMO likely applies only the slimest minorty of filter-feeders.
More importantly... what some of us are largely talking about here is the product advertising! Not the product potential. Its just not clear enough. If someone floats a claim(s), well then... we'd like to be convinced that the claim is true.
I would, at least, like to know that any claims are true and verifiable before adding a product to my systems with tens of thousands of dollars of corals in it and countless living creatures depending on me for their very lives

This hobby has no organized consumer advocacy as you know. Its up to us (consumers) to evaluate the merit of each and every product with little assistence otherwise.
And to reiterate... a principal concern for me at least is if the "hibernation" process is a chemical fix. Is the product truly alive... or was it merely alive at the time of packaging? If the latter... then what killed it? What was the process of preparation? And how does that then reflect on the advertising claims that started the discussion?
That is something I'd very much like to know before feeding it to to my filter feeders.
I don't put anything into my body that doesn't list the ingredients clearly... and I personally do not use products for my livestock that don't fit the same criteria.
I'm going on the premise that Phyto-Feast is a safe and useful product, indeed!
Its just raised some questions and neither the label nor website are clear enough for me. As a consumer... I'm going to information gather longer before I actually try it in living aquaria.
If we can't find Rob's info on a thorough web search, we'll e-mail him.