Do you know why Linux hasn't superseded Windows, despite being a superior product? Because Linux is not easy, is not necessary for the average customer, and Linux does not inherently make them feel important or carry status with it. Monero can't afford to be Linux. You can get on the anti-Apple bandwagon all you want (I'll agree with you in many ways), but their marketing is the fuck on point.
I agree...
But the most important thing for a coin to succeed and to be adopted by all users and shops (on internet or real street store), is
at first :
to have a complete payment confirmation in less than 10 seconds, ideally 5.
That depends on your target market. Are you just trying to reach people who are buying coffee and donuts or are you trying to reach and deal with people who want to buy medium to large size items in terms of price/value?
Cars, real estate, motorcycles, heavy machinery, servers, precious metals, etc.
No one would accept 5-10 second flimsy confirmations knowing how the blockchain technology works. You could have your money/things stolen by double spending problem.