What do you mean throw invincible move?
A tutorial Tom Brady did for Grundy. At the 7 min mark, he explains throw invincible moves. I already knew that there were situations where Bane's Throws wouldn't work (normal, special, & super), but I attributed it to throw properties not functioning on Frames where throw and attack perfectly clashed. Based on his explanation, there are throw invincible situations, but frames have nothing to do with it. Instead, they are specific to special moves (that probably each character has) that nullify throws and their armor properties. So against grapplers like Grundy and Bane, those moves become optional wake-up moves and pokes due to them being throw invincible, EVEN IF YOU HAVE ARMOR.
I believe Bane's venom charge is his throw invincible move. If you use Bane's Super and set the AI Bane to do Venom Charge, you will get the same outcome as Tom Brady's Grundy Demo. Venom Charge will either clash with your super, trade (in which case you take damage from the charge, but your armor absorbes it) or it beats out the super clean by nullifying the armor. This outcome applies to ALL throws.
Bane isn't low tier! And by Tuesday's patch, with the buffs he's getting and the nerfs to the characters that aren't really top tier but people complain about, he should be top tier for sure!