Why couldn't you just use ViaVersion for all 1.16 versions like what you did with 1.15-1.16 support earlier this year? Updating to new minecraft versions so quickly between updates makes it pretty annoying since you have to keep updating your mods and devs that make DF utility mods also have to...
They should have probably used ViaVersion with 1.16.2-1.16.3 like they did previously when it was on 1.15.2
(It's really annoying that I have to update all my mods and some utility ones for DF like CodeUtils don't work on 1.16.3)