Faith also is used to keep the common folk down for centuries past, you'll hear no arguments from me on your points guys. But, some do rely on their belief. Strange, but true.
Look at it another way...if prayers do no good all you've done is waste your time, but if they work...... Also the Muambas are obviously religious and it makes them feel good that others are thinking of them.
You say that like wasting time isn't harmful. This was a great opportunity for footballers, being the role models that they are, to promote a heart disease charity or something. Instead they just promoted talking to yourself.
How many of you said Oh God! when Lala missed that sitter on Tuesday? Remember sudden prayers make God jump.