Go read it yourself. There isn't enough information to draw concussions. Everything is consistent with contact with a major funder who you can't cut off just because of evil in a part of life you knew nothing about.

You can read the article with a bias and ignore his counter claims. However that is drawing a conclusion not warranted.

Now perhaps someone has read the letters and seen other evidence and can draw conclusions. However at this point I can't say who knew what.

Both people are of course evil, but they may or may not have an evil in common.