If I were to buy this and if that "hose" is 1/8 npt, i would make it macro again by swappung it with an ego 11. By the tech poster it looks to be the same dimensions.
That air channel would further weaken the frame.
And I believe jack went with this route bc he felt internal plumbing ( when it leaks) is hard to trouble shoot. He addressed this in post in nation I believe or it could be a video. I can't remember which.
While this idea attempts to get rid if the macro whole maintiajning reliable. I still say just stick to macro.
Simple and effective
I honestly think this design will get in the way more than the ego 11