Nobody’s dropping a MOAB on Moscow, because it’s dropped out the back of a C-130.
And even if they did it’s got less than 4% the yield of a B61, on it’s lowest setting, that fits inside an F-35. On it’s highest setting the B61 is 30,000 times more yield.
Conventional explosives are toys compared to nukes.
They were trying to get them to solve a real world problem for free under the guise of an interview (made up) problem.