Keeping the gods to their ancient ways and societies is fine if you simply admire them as artwork, but if you believe in them as living beings, and deal with them as such, then it is like insisting that a friend of twenty years standing is not allowed to change their hairstyle or their favourite treat. They may well not change their basic nature, most things/people/beings don't, but their ways of expressing themselves will move with the times. Trying to hold them back to a safe, stagnant representation of themselves that you found in an old book doesn't work unless they are 'just' stories and not real.
*nods*
At least, I HOPE the gods change with the times. My most recent offerings to Brighid are ice cream and french fries. I don't think they had those in Bronze Age Ireland.
