I had no idea if gamenomics was even a word. You can earn from the games in different ways even without selling cards. Some people may be selling the tokens they earn from missions rather than re-investing, but some card trading may be required to make good progress.
I know some games with physical cards are big, but I have not played those. There is rarely anything that is completely new and games with take influence from various places. They can each add their own unique twists. Some involve direct competition with other players and some are solo efforts.
I'm not saying you are wrong, but there may be more innovation than you give them credit for.
!BEER
I give them credit for helping grow Hive and what they have done to show use cases for the technology.
I just don't think they deserve all the credit for some ground breaking crypto business model.
I am glad they are part of the ecosystem, but want to be honest of what they bring.