[padraic7a]

You're correct. That would be a fine way to make a comprehensive criticism.

I was trying to express frustration with posters who start out with a nebulous complaint like "Signal is bad and OWS is evil". If called on this they come back with "It allows Google to spy on you", if countered they come back with "it doesn't allow freedom to federate" and so on.

Rather than being a multi pronged criticism it's more like a bait and switch, with each new argument being deployed when the previous one is rendered invalid.