[Justin 188]

gracious
–adjective
1. pleasantly kind, benevolent, and courteous.

Saying "graciously accepts" is grammatically correct, but I agree, that's not an appropriate word to use there. Being "gracious" is only a distinction within the context of competition; when you co-operate it should be a given.

'Gratefully', 'humbly', 'proudly', 'enthusiastically', those are all much better words than 'graciously'.