Maybe I misunderstood him. I thought he meant to have HO/T lanes on all the Interstates, but not that they all ought to be 100% HO/T.
And it would also be helpful if every road had the same standards for what is HO and what is not. Each roadway on every freeway in the larger region (to even include I-95 north of Baltimore) should allow for toll use with free use for HOV-3 with an EZ-Pass Flex.
[I think there were some reports that the proposed 495-270 lane would be toll only, but that would not mesh well with the existing HO/T standards of 495 in Va.]