Who is protected with this card?

Consumer Product Ownership Registration

After 22 years our fridge was reaching the end of its life and so we decided to buy a new one. As with virtually any appliance these days, the manufacturer want to get all of the customer's personal information. Even though the card says "Registration information for internal use only", most people probably expect that their personal information will be parsed, sorted, bundled, and sold to a wide range of interested parties.

The thing that I find most interesting is that the firm's lawyers felt it necessary to add a line to the bottom of the registration card.

"Failure to complete and return this card does not diminish your warranty rights."

So, does this mean that "even if you don't fill out this card, you can still sue our pants off when your appliance catches fire"?