That analogy would work if the choice at the general election was
A) Your current MP
B) Another MP. We're not telling you who it will be. In fact we don't even know who it will be. We don't which party they will be from. We don't know what government they will form. And we don't know what policies they or any government will have.
If we were presented with that as a general election we'd all go "what? Are you ****ing mad?!? Give us a proper election with proper choices!"
So I don't see why it should be different in this case. It never should have been a straightforward "in" or "out". Especially when we had no idea what sort of "out" we were getting.
Pausing it, putting a number of realistic options to the vote, and then accepting that vote seems the most sensible option.