That's clever of you to spin the lack of fluoride as a benefit. It'll satisfy people who are paranoid about fluoride, and people who aren't probably don't care.
Yay marketing! I feel inspired to remove expensive healthy ingredients from other products.
Healthy ingredients have been removed from most foods, and for very similar reasons. It's not a product requirement for a burger bun to include wheat germ, for example, so it is removed to reduce cost and balance with other product requirements (eg lower cost, improved flavor, shelf stability).
If the alternative is not having a profit margin, why not?