The $20 DLC is fine, it's the $10 fee to upgrade your game that's the issue. Like if other companies can offer free upgrades and even Sony have done this with Spider-Man and Sackboy, then why can't they do it to this?
What baffles me is if you own the game you should be able to get the next generation version for free. Like you already paid your "fee" buy buying the next generation system. Haptic feedback, adaptive triggers, etc are apart of the system's features and yet it's being locked away from you until you pay more money. That's like if on PC you buy a new GPU or any PC part, or getting a new PC then paying to upgrade your games to take advantage of your new hardware. Also $70 sucks, if these companies try this on PC they would see backlash and loss of sales.