Shifting the focus to sensory processing is great, but I am really perplexed by their building entirely on the tactile sense. Maybe it is just poorly written, but there are already strong theories out there that posit that social communication deficits are due to sensory integration dysfunction and an inability to process some parts of social communication as a result (unable to keep up with the volume of data because of hypersensitivity, inability to perceive some data or get accurate data because of hyposensitivity or distortions, variances in processing speed leading to audio and visual processing being out of sync, etc.) There is also lots and lots of anecdotal evidence from people who report being mono-channel, needing to read lips, being unable to understand verbal communication if trying to process visual information.