This whole Starbucks thing really blows my mind sometimes. How 'we' collectively forced the kashrus agencies to go out and figure out what's ok there and what's not because 'everyone' decided to go there. I can't think of another store this has ever happened with.
There is a different new drink they also did it for called slurpee
You could say the same thing about beer, booze, frozen fruit and vegetables, and so much more.
'We' did no such thing. 'they' do it on their own. Same with the booze lists, or the CRC's wonderful app, the lists of things that don't require a hashgocha.
They see themselves as communal service organizations, and this is part of their service. I, for one, am appreciative.