Apples and oranges -- I think framing is a big issue: "I ordered 30min in advance from my phone and will take food to go" vs "I would like to pay a premium to get ahead of others waiting in line". The latter obviously stings of people's differing time value of money (or I guess more appropriately, money value of their time).
Yea you are right to some extent, but then what is the difference between seamless pickup or calling and ordering(human interaction, scary i know) and PayDragon? Seamless has a great mobile app too. I think they are entering a red sea.