I was under the impression he was referring to the current transaction capacity without the full implementations of segwit, lightning, schnorr signatures ect. Which I think if im not mistaken is between 3-7
The
current transaction capacity INCLUDES both segwit and lightning, both of which are
currently actively being used.
But they are nowhere near full capacity though are they. Lightning is only a few months into implementation, anyhow again the guy mentioned that 'other' updates were also required to reach the million or billion transactions he was referring to that could potentially be possible. Seems you are being a little picky