1.5% cash back does not mean it is UR earning. Cash back is cash back.
If it is 1.5 UR per dollar then this immediately becomes the best credit card for all unbonused spend - amazing for anyone with high business/personal spend.
If it's just 1.5% cash back then it's useless.
Chase has ALWAYS marketed the Freedom as it is now as a CB card so them marketing this rumored card as CB means little. Until we see who the rewards actually work is when we can tell