No, they were all a limit of 10 offer redemptions, they were just for individual products. PC has done 'Buy Two Offers' with 3x limits a number of times before. It doesn't mean you can only buy 3 bottles of soap when the instruction is to buy 2 to get points, it means you can buy 6. Just as with this offer it's to buy 4, with a limit of 10 offer redemptions.
As to the offer, I have no interest in getting any