I'd still accept some timey wimey spacey wacey explaination as to how that could happen though.
Maybe pulling a pirate through a jump that is beyond his own jump drive would cause damage to the enemy vessel? or shorten the jump distance of yourself but dropping you out further apart.
if the timing is right and done correctly it could be a nice bug become feature
there's already the risk of failing the interdiction if you do attempy such a thing.
it's a risk vs reward thing again and an "anywhere but here" scenario.
Currently the only ones capable of interdicting an FSD in progress are..... Thargoids!!!!
(and we still don't know what happened to the Ex-Fed president)