Games get cancelled and reworked all the time for a litany of reasons.
Nintendo, especially, is very vocal about this practice. Usually it's "a bad game is always a bad game if it is released, so we keep working on it until it is good". I've never heard them say "A good game would be released had it not been for those pesky leakers".
splatoon got realeased, as a new game, from a different team, reworking the concept. im sure that the first team that lost their right to make that proyect because it leaked were totally fine with this, because although they lost the job, what is important is that in the end the game was made one way or the other... so there were no loses or consecuences to say leak...
we even got something probably better than the original project! rejoice people! come to the light!
(just ignore the jobs lost, the change of studio and all those hours of work lost, who cares of that insignificant collateral damage? is nonexistent!)
please, be at least a little serious about this, we are trying to debate something that has consecuences, although they could be dismisive for you... many families wont feel the same