How do Spanish-speaking atheists feel about the traditional Spanish departing phrase?

In Spanish, the word for goodbye is “Adios” which literally means “to God.” Do Spanish-speaking atheists have a problem with saying Adios, or is it simply like saying “oh my god” or “dear god” for English-speaking atheists?

I promise you this is a completely serious question. I have been thinking about atheists a lot these past days due to questions here on fluther and conversations I’ve had in person.