Cutting off, reduced contact, and the line this platform will not draw
This is the part where a course could do real damage, so read it slowly.
Severing the ties of kinship, qati at al rahm, is a distinct and grave prohibition in the religion. That is not in dispute and nothing here softens it.
The position this course takes is that reducing contact is not the same act as severing the tie, because the tie is made of greeting, presence, help, supplication and refusal to humiliate, and those can all continue at a shorter visit. Scholars have discussed exactly this. Some have written about maintaining the bond in a reduced form where contact causes harm, some have written about what a person is obliged to bear, and they have not all landed in one place. Where they differ, we are telling you that they differ and we are not choosing between them.
Here is the plain part. This platform does not issue fatwa. It is not a mufti and it has no ruling to give you. What counts as maintaining the tie in your situation, what counts as severing it, and what your obligations are given who your parent is and what has actually happened, is a question for a scholar who knows you and knows the fiqh. Go to one. Ask about your case and not about the general question, because the general answer is not the one you need.
Until you have that answer, the safest reading of this lesson is the narrow one. Keep the tie. Look at the hours and the subjects.