Not unlike John Bobbitt's penis, this too could have been successfully reattached. I've done this many times, With my plants, not my unit. Apical stem reattach, 4 days after complete severance.
Even though i trimmed her can i still can how do i slice an insert an tap if you know my meaning like a tree an you want to put a branch from another tree you. Splice a segment in the tree an tap other branch to tree then watch growth type style
You could have fixed it, if i snap a branch i put aloe on wound and duct tape, if the branch snaps but does not completely come off plant this has worked for me.