Nobody is denying this. The real problem actually is the other way around. If Facebook infringes on your IP, you still can't do anything about it..at the risk of losing patent cover.

Im really not sure how it can be worded to let legitimate lawsuits through. But that is the problem. Tomorrow if you build a new AI algorithm on caffe2, FB can pretty much use the whole code and you would be bound by the patent clauses.