I really do not see the point or relevance in protest of ensuing "dispute" of whether is ok or not and that it should be or should not be allowed. Starbucks is a business like any other businesses. The empire is built on a business model that zooms in on a business opportunity with maximum benefits and makes a hit.
I reckon it is a win win situation merely because Starbucks will undoubtedly bring in the clientelle and vice versa. Hence I think both Starbucks and the temple will see an increase in turnover be it profit or numbers of visits.
Even if the patrons of Starbucks genuinely did not intend to visit the temple, chances are highly likely that since they are already in the neighbourhood and the famous temple is just a mere walk away, they just might! And who can resist a coffee or a mocha on a cold winter day whilst coming out of the temple grounds?
What the Temple should do I feel is get in on the bandwagon so to speak and start cross promoting each other. Put flyers and pamplets in the Starbucks whilst get a promotion going with Starbucks whereby each visiting person on a certain day would get a free latte? I know its a little cheeky but hey, we are in a degenerate time and whatever it takes to "trick" the mind, why not?