When...
P&G released the initial formulations of Cascade Complete, (there wasn't Platinum around then) the complete pacs, and powder, were just horrible. They wouldn't clean even lightly soiled plates, let alone, pots or pans. Everything would come out covered in film, and one, just basically thought it was a lost cause...
Shortly around the time, Finish (formerly Electrasol) starting touting themselves as better than Cascade, major improvements were made. The Cascade Action Pacs themselves gained Sodium Citrate (a lemon based, salt) which, dramatically improved cleaning performance, especially in hard water.
And that wasn't all... Shortly around that time, Cascade Gel gained a Rinse Agent (Which, pre-phosphate ban, was P&G's best seller, and the most purchased automatic dish washing product) and also, did a fairly better job then the initial horrible formulations..
Cascade Complete Powder, itself, still doesn't have all the water softening agents, as the Cascade Regular Action Pacs, or Complete Pacs, but it does do a much better job then the 2010 formula. It has much more Enzyme Content now, (a big boost in dishwashing performance)and has much less filler, with more Sodium Citrate & Sodium Carbonate (so it does a much better job at keeping dishes film free.
The only thing.. that leaves me unimpressed with P&G . Is Regular O'l Cascade Powder. The Regular Cascade Powder, hasn't changed, much at all. It simply doesn't have enough water softening agents in it, to preform well, in even moderately hard water, plus, it doesn't have much enzyme content to do anything either...
It's just a sad lost little cause, imo. I remember Packaging Labels, that said "The #1 Automatic Dishwasher Powder" and at the time, it could do well. It had enough Enzymes & Phosphates to really get dishes clean, and I mean, Really clean. Maybe not enough to scrub dried on food, but it was a powerful detergent...
Oh, Memories. Gotta love the State we live in...