Not just Dominic Cummings[0] but also Jacob Rees-Mogg[1].
I think it would have been democratically unconscionable to not have had "No Brexit" as an option on a second referendum, but that would have required a relatively complicated ranked voting system, and arguably it would have made more sense for the first referendum to have been set up that way instead.
I suppose the alternative would have been for Remainers to boycott the hypothetical second referendum, and hope that the number of votes for the different Brexit options summed to substantially less than the number of votes for Brexit in the initial referendum.
I think it would have been democratically unconscionable to not have had "No Brexit" as an option on a second referendum, but that would have required a relatively complicated ranked voting system, and arguably it would have made more sense for the first referendum to have been set up that way instead.
I suppose the alternative would have been for Remainers to boycott the hypothetical second referendum, and hope that the number of votes for the different Brexit options summed to substantially less than the number of votes for Brexit in the initial referendum.
[0] https://www.markpack.org.uk/150719/dominic-cummings-second-r...
[1] https://metro.co.uk/video/jacob-rees-mogg-suggests-holding-s...