@JWBananas So yeah, honestly I feel like you're missing most of the context in those videos.
I never said pacs don't work - I said that I suspect they've led to a lot of dishwasher dissatisfaction, made an argument as to why, and backed that up with a demo of the pre-wash and how, with no detergent in there, more stuff was left on the plates. That then was the starting point for the main wash cycle, and I figured that difference would speak for itself.