People here will probably criticize your expectations, but I understand your point. Yes, the seat is 90+% of what you paying for. And the seat is great.
I have flown UA first class to Europe and I have flown LH first class. The seats are very nice for both, yet the LH experience is so much better.
Travel is about creating memories. Over the top service is a memory you can keep for a lifetime. And, yes, dazzling the customer does build loyalty, as Apple has shown repeatedly. Just some friendly advice to the management at JetBlue.