we all know the truth, we all know a cartridge is just that, and it will never a DE and or as good as a straight when properly used........why even get bothered by Gillette's wild claims........they are in business to sell.
The thing is, they need not have bothered. Straights require skill that takes time to master, and casual users won't do that. As for DE razors, some years ago, when I was a cartridge razor shaver who did not care at all about shaving except as a chore to be gotten through as quickly as possible, I tried a DE razor, out of curiosity. I applied Edge gel to my dry face, and ran the thing across my cheek.
OUCH! This DE shaving thing is for the birds! Modern cartridges are obviously much better than this!!!
Sometimes, it pays to trust in natural processes.