But why, though? Wouldn't it have been perfectly OK for Morph to also download in it's own private folder? The files could have been exported from there to another location on the filesystem via Content Hub (as they already can be currently)
I don't know the specifics of why things work this way in regards to webapp-container/morph. IMO, the current behavior is wrong. But if one wants to change it, they should open an issue about the behavior on github. This isn't the place to resolve that.