With two baristas, both waiting around for an other to be paid for (instead of making orders ahead of time) and cashiers scattering between fetching drinks and taking payments, no wonder there's a line!
I've been to enough Starbucks to know that this is not how most are run. Mix that with the most processed looking baked goods I have ever seen at a Starbucks -- are these knockoff Costco pastries -- and you have yourself a pretty sad sight.
When you expect something standard from a well-known brand, it feels like an even greater fall from grace when it all goes wrong.