I see your points and I have to admit I haven’t used a NFC phone (the FP1 is my first smartphone).
Paying anything with / on my smartphone is a no-go for me in general, so that’s not valid for my use cases. If I had 6 bluetooth gadgets NFC would probably quite convenient. Still I’m asking myself whether implementing NFC is worth the effort (think resources too!). That’s mainly the reason why I only have one bluetooth enabled gadget, and even this loudspeaker was a present I had no influence on (haha, it even has NFC… 
).
PS.: See my struggle to decide on bluetooth vs non-bluetooth headphones. 