The original Lua-based Torch is actually from EPFL, not Facebook. Tensorflow originated from Google's internal DistBelief system, making TF a Google project through and through.
But nobody would care about PyTorch if it didn’t have big tech’s blessing, which is the point the above was making.
To be fair though, the reason PyTorch exists is because Yann Le Cun used Torch, and presumably FB thought a Python version was better than teaching engineers Lua.