It's basically victim-shaming in a choir robe.
"Theology B" is the "everything happens for a reason" theology.
I don't know of any churches that have an official policy surrounding disabilities, but I can tell you from the decades of experience I have in the church that Christians tend to be divided into three camps when it comes to disabilities. These beliefs, whether they are consciously or unconsciously held, have a major impact on how they treat people. They also have a major impact on the emotions and mental health of those with disabilities within the church.