A large tree is felled, the roots had grown under brick foundation, can it's stump draw H20 & soak the wall

My mother owns an old farmhouse. It's foundation wall is brick masonry. She has been experiencing moisture problems on the inside and outside of the exterior walls up to 4ft above grade around the entire perimeter for the last 1.5 years. The land falls away from the house on all four sides at a decent slope. Two years ago a very large, very old oak tree, whose time had come due to a lightening strike, was cut down. The tree grew within 15 feet of the west wall of the house and I’m assuming that some roots grew under the house. The original tree easily had a 70' diameter drip line before it came down. All that remains is a large stump about 8" high and five feet in diameter. The moisture problem seemed to start soon after the felling of the tree. Is it possible that, in addition to no longer drawing rainwater from the ground, the roots are taking on water through the stump and, in a sort of reverse capillary action, transmitting water through the roots and under the house?