Another reasonable solution would be to make the upwards wire be unfavorable actually as the wire is visibly longer than the wire only on the ground
As an FYI for anyone wanting to take advantage of this change if you want to transition from a colored opaque pixel to a fully transparent one you need to insure that the red, blue and green channels are the same same as the starting pixel and not 0, 0, 0 as it may be the default in most software. This is because although it will transition the alpha channel it is still going to transition the red, blue and green channels (unless it's been changed to be ignored for a fully transparent pixel) at the same time so it will be transitioned to black and fully transparent at the same time.
video added
This doesn't allow for explicit or inline item definitions for the container though, you must create a loot table for the items that you want in your chest item. This makes what you can have as the item contents for the chest less dynamic as you have to point to a static loot table.
This will only happen before re-opening the launcher after a new snapshot comes out.
And as can be seen in the video attached by another user this issue also effects windows.