I just read about this on Android Authority's link on Facebook.
I find this ridiculous, to be honest. If you take out the jack, then you automatically open up the doors for your customers to spend more money on Bluetooth headphones and things they may not want to spend money on in the first place.
I'm hoping this is not a true allegation, as I feel like Android usually goes the more economical route of not forcing customers to buy high end or brand name products/accessories to work with their devices (ie, when you buy an iPhone, you need all Apple-related products to work with your phone). Hopefully Samsung changes this in the future on next iterations if it's more than just a rumour.