People talk about it like they're having to high-knee it through chest-high brush.Exactly...and I agreed with that and mentioned that. Now, not all of them do, but a lot do. Most of that has to do with holding on to the ball and being able to grip it when you throw.
We are talking about grass that might be like, 1.5 inches tall. Not a rainstorm or snowstorm.
So, unless the grass is so high that it is interfering with Armstrongs throwing motion, I really don't see an issue.