It was obviously all the same to her.Mother Teresa was criticized for what she said; however, knowing more of her body of work, it doesn't surprise me that she said it. Much like those Christians on religion forums (who waste so much time discouraging those of other faiths), if she had taken the time to do the same, she would never have had the time to accomplish her great works for the poorest of the poor.
I really don much care what she believed. Its the overall beliefs of the Catholic Church and its attempts to draw people into her thats the problem. The attitude of not only church leaders but especially the pope in regards to cooperating with all religions and especially condoning praying together is totally contrary to scripture. It is also the precursor to a one world religion which is clearly prophesied for the last days. The Catholic Church has positioned itself to lead in that endeavor. Mother Theresa was just a part of that trend.