I note that you acknowledge that the Painter family support of their member. What you fail to acknowledge is that they must also be Purdue fans because support of the two is tied together, and are positively correlated with a correlation coefficient of essentially 1.0. Your use of the present tense instead of the past was, I believe, intentional and designed to suggest a false impression. One microsecond of thought would have dictated the use of the past tense.
Whatever the past allegiance of the family was is now irrelevant. It has the same effect on the present as the color of the shirts that they were wearing when watching those old games on tv or in person.
In thinking about the evolution of the family loyalty, I was reminded of the words in a hymn heard at a recent church service. "I once was lost, but now I am found. Once blind, but now I see." I am sure that the poster on this board, Van Pastor Man will appreciate the reference.