I'm not surprised, alleging that the telegenic interests of assorted groups just so happen to be aligned with your bottom line is an old strategy; but this is pretty incoherent even by the low standards of the genre.
Yes, if there were a fast lane, one could theoretically put special-deaf-packets in it (or just as easily shove them into the slow lane, if they can't afford to pay); but this ignores the more pressing question of "What, pray tell, is currently suffering for want of special bandwidth and how demanding must it be if your existing service can't cope?".
I can imagine that certain disabilities might drive modestly higher bandwidth demands (the deaf, presumably, don't get much use out of VOIP, which is lower bandwidth than video good enough to make lip reading or signing an option; but last I checked uploading and downloading video wasn't exactly a niche case, even if it is one where Verizon can't seem to get Netflix working...); but nothing that exceeds the current or near-term demands of most internet users.
They obviously won't prefer this interpretation; but just how awful is Verizon planning to make the non-fast lane if these special disabled services will need to be fast-laned to work? Anyone?