I will point out as to remind everyone that the issue isn't the inability to stab hit, more so the inability to capture land that someone plain cannot hold on to. Stability hitting is the way paradox tried to make multiplayer peace deals smoother but it did lead to grey areas like this one where people can with a tiny bit of changes (in this case removing the forts which in single player usually give you enough war score to take the land in the 100 years war) leads to the issue above. Just adding something like @bbqftw a straight to Kent or what @MiniaAr addressed, having a lower war score solves this problem but makes more grey areas. My solution in the in the post was meant to avoid more grey areas like this one by making a unique mechanic separate from other systems to avoid unintentional loop holes that end up hurting the game and Paul's is more of a base idea that solves the problem in a simple and effective way but *does* end with a bit of issue if you dig into the details more, which we love to do.
-As a side note removing the Kent straight seems a bit more realistic and like i said having it does allow you to take care of English mainland if you can actually beat their navy and doesn't require any more coding than just adding it back in to fix the England problem, except, it doesn't fix the problem. It doesn't stop England from hiding on their island preventing you from crossing and doesn't stop any nation from losing territory overseas that they cannot hold on to since it only applies to England. England was the topic of the post but keep in mind the meaning goes much deeper. Imagine someone from India holding all of the Iberian Peninsula but with no forts and, if declared war on, could be easily beat by someone like France. A straight in Kent doesn't stop that Indian nation from holding out for as long as he wants without worrying a thing about losing land when at most it could probably end up being at most 40% war score after ticking all the way and having a few lost battles in the Indian side. All it comes down to in that situation is no 50%, no stab hit, no problem. That's why it should be more oriented on the war goal and claims for stability hitting instead of getting 50% war score.
-As a side note removing the Kent straight seems a bit more realistic and like i said having it does allow you to take care of English mainland if you can actually beat their navy and doesn't require any more coding than just adding it back in to fix the England problem, except, it doesn't fix the problem. It doesn't stop England from hiding on their island preventing you from crossing and doesn't stop any nation from losing territory overseas that they cannot hold on to since it only applies to England. England was the topic of the post but keep in mind the meaning goes much deeper. Imagine someone from India holding all of the Iberian Peninsula but with no forts and, if declared war on, could be easily beat by someone like France. A straight in Kent doesn't stop that Indian nation from holding out for as long as he wants without worrying a thing about losing land when at most it could probably end up being at most 40% war score after ticking all the way and having a few lost battles in the Indian side. All it comes down to in that situation is no 50%, no stab hit, no problem. That's why it should be more oriented on the war goal and claims for stability hitting instead of getting 50% war score.