Yes, I believe the chastising got a bit excessive, especially with this little tidbit: there is nothing in TFP that prohibits the use of pucks. TFP is about knowing what is in the stuff you put in your water and following the FC/CYA chart. Pucks are generally a bad idea because it starts to get out of hand as the CYA rises, but if someone is completely OK with the necessary water changes then the use of pucks is their business. It is something that annoys me a bit that people believe you MUST use liquid chlorine. It is by far the best option as it does not add anything but chlorine and salt, but that doesn't make it the only option.
However, there are no magic CYA-free pucks (there are cal-hypo sticks but they require a special feeder and then you have the CH rising problem) and no magic potion that makes CYA disappear (despite BioActive's claims). If you use pucks you have to reduce your CYA through water dilution, no way out of that. If you can't change the water and want to avoid lugging jugs you can opt for an SWG or use lithium-hypochlorite instead. Lithium-hypo is insanely expensive compared to liquid chlorine but is an option.