Who said the government supplied the Bibles? Generally Bibles placed in hotel rooms are placed by the Gideons, and that is done in hotels both on and off government property. Allowing them to do that is not in any way a government endorsement of any religion, unless that permission was solely reserved for Christians and no other group (which it is not). The universal removal of Bibles from hotel rooms, however, could easily be construed as a government statement against Christianity.
However, having not actually read the article, I make no claims regarding the constitutionality of what may or may not actually be occurring.