I joined midway, and I feel that the last capture point in both stages seem rather hard for blu. The first one is basically a 'cave' where sentries are also nested usually. Second one isn't as bad but there's like three paths to the point (unless it's a rocket/sticky jump), one is the spiral, one from the side and one from the red base.
If it sounds too extreme I apologize in advance, but I think the first stage's second point should be a nobuild area, or find some way to open it up slightly more than before.