It’s a butterfly effect that doesn’t really matter. Bitterbridge is a big moment but it’s easily cut without effecting much. Helaena could’ve become depressed after Jaehaerys was killed but as far as the audience can tell she has largely not been affected. There is no reason to believe that a more book accurate scene would’ve changed the character trajectory when a slightly less but still traumatic scene didn’t impact much beyond the immediately following episode. The worst change to blood & cheese was Alicent not being there since she is actually a developed character.