TB has never hid his religious tendencies and there have been team prayers, I believe,l since he arrived. IIRC, Justin March said something to the effect that it was a easier time be a Christian on the team after TB arrived. TB shares his life philosophy just like PJ Fleck shared his.
If there is a problem, it would likely come from an outsider and I am not sure why people who are not team members have an issue with a team prayer unless they are really religiously intolerant, honestly. With all that is wrong with the world, opioid addictions increasing teen suicide rates, violence, and other issues, a team prayer should be the least of anyone's worries.