Human LCD... The Next Revolution of Stadium Signage?

When it comes to in-stadium signage, it seems that American sports organizations have discovered how to brand every inch possible... But two (2) clips enclosed below drive the question, "Are we adequately leveraging our fans, the same group that we are targeting, to effectively portray our message?"

In East Asia, the following clips demonstrate how two (2) teams/organizations have made use of their fanbase to create "HUMAN LCD". The clips are pretty amazing... Fans in the stands use different shirt lifting techniques in unision to display the interactive messages... Will sponsors soon have "after-work" practice for American fans to try this?