Consumers need to understand that a company is made up of R&D, Marketing, Sales, communications, Distributors, Finance and all kinds of functional organizations. I would image that Sawyer has a lot of inventory of the older style and yet these have a (by most peoples accounts) a design flaw. You solve the engineering problem with a re-design. What do you do about the old inventory? Somebody probably weighs out the balance between incoming revenue, tarnished reputation, returns and such to maximize revenue. Do you identify the re-design? Well, if you did, you would probably kill your sales on the original design (the one that you are over stocked in). So, you say that there is no difference and keep moving inventory. It is amazing to me that someone markets a product called the squeeze and then has the balls to tell a customer that they squeezed it wrong (voided warranty). I would guess that a vast majority of people ARE NOT backpackers and do not put these filters through the same rigors as BPL’ers. Good chances are that Sawyer is playing the odds on this.
Just wait, when the old inventory has been exhausted, expect to see a new marketing advertisement about the new and improved bag. That’s my 2 cents - Jon