This is very, very shady and deceptive. I wouldn't be surprised if someone could sue Delta for false advertising because Delta does not offer "Delta One" -- its flagship international business-class product -- on flights from Guam and elsewhere in Micronesia, as advertised at:
https://www.delta.com/content/www/en...ml?icid=AsiaFS and
https://www.delta.com/content/www/en...ml?icid=AsiaFS.