Time to be practical?

I read this article on how an astronaut is trying to gather information on how to pray in space.

While I am considerate towards religious sentiments and I believe that every individual has the right to follow his/her religious beliefs and practices, surely, in examples like these, these people have duties towards their countries and the taxpayers who have financed their journey to the rim of our planet and beyond.

One then needs to ask if a line should be drawn somewhere that recognizes the religious sentiments but at the same expects followers to be practical and not to waste much time on such "details".