In reality, the GMS2 update was probably the biggest. It required the entirety of MI to be ported to an update of its engine and the way it handled models changed. Still, this is a big update for people concerned about making animations look glow-y.
The old bending can't be added back as that'd remove the ability to bend in multiple axes and that'd result in models needing to drop data for non-single axis bends.
Or you could just add an option to enable/disable it.
Dev update #13: 1.2 feature gallery
in Downloads and news
Posted
Or you could just add an option to enable/disable it.