Supportable enough. Keep in mind every medium to heavy AFV in the US Army has multiple levels of armor that can be removed or applied depending on need.How logistically supportable in a peer level war is any effective force of these tanks that are sent in by air though, particularly if it takes a day to get them up to their full armour rating?
Having images of Arnhem day 3/4.
Light tanks are to provide MBT-like support to elements for which MBTs are beyond the definition of outsized cargo.
That is, the various light infantry division types. And in all the infantry division types, it's no more than a battalion of MPF.
And as I said, it's not going to get to its end point in a plane. That could be an airfield in a neighboring country.
I don't think anyone planned for purely or even dominantly airborne logistics for the infantry division types.