AIUI, the
Gideons exist to do things like the placing of Bibles in hotel rooms across the World. The hotel isn't putting the Bible there, they just let the Gideons do it. Provided the same hotels would allow an organisation from another religion to similarly place copies of their religious texts for the benefit of their own devotees, I cannot see any religious discrimination here.
That said, I now have an interesting mental picture of Travelodge bookshelves containing a Bible, the Koran, effigies of the Buddha, Brahma, Vishnu, and Shiva! (and a stash of ganja to keep the Rastafarians happy

)