Why don't they test it and demonstrate it? It seems like a no-brainer to do that and present the results to then attract interest and step into that graphic ahead of other chains.

Specially now that outside/mainstreet eyes are getting interested in Blockchain/Crypto. I sometimes think that complacency will be the downfall of some Blockchains. Mainstream will just build their own chains and take the masses. Teams sitting on their hands thinking that the masses are actually against centralised is just not good business sense.

People just want the service to work.
PayPal (as much as some hate it) does that. MasterCard/Visa (as much as people feel they're evil) command the infrastructure.