No, I doubt you'd get into much trouble... however, making false accusations against an industry that ultimately results in a loss of income to them could lead to a law suit. I doubt the second part of that is true (loss of income), but having a fairly strong background in chemistry, I find the claim to be quite bogus.
Are you claiming that if I have a bottle of water and store it for 6 months, that less of a carcinogenic substance is going to leak into the water than if I drink it all after 3 months, refill it, and store it another 3 months? That's preposterous.