Youph isn't saying that this was intentional, he's saying it's an unforeseen consequence of a deliberate design choice. That doesn't make it a glitch, it's working as was intended for the general case; it's simply an oversight concerning "lingering" projectiles with more active frames. It could be hot-fixed if it's brought to their attention, but it wasn't erroneous coding. I think it adds a new meta to Scarecrow's trait that could make for some very interesting mindgames in certain matchups, but take a main's wishful thinking with a pinch of salt haha