So if I watched that all right, DE wants to turn heat into corrosive by giving it some level of armor stripping, being either a flat number, percentage based, or such as shattering impact and applying to an enemies base armor value, I'm not sure between these.
If I may suggest something else to reduce effect overlap so that nothing becomes redundant when it comes to damage and status types and everything can do it's own thing, here's what I'm thinking. Don't have heat strip armor in any way, shape, or form, but instead have it so that armor receives gradually increasing damage over time from heat status, multiplied by the current armor value that enemy has (as to not be considered as broken when used along side corrosive). For example, a butcher's armor isn't going to get as hot as a bombard's but that's okay being as that they're squishy trash. Bombards on the other hand, would just be begging to die inside the now oven of the once heavy armor they wore, such as if it were a personal brazen bull for them.
The cause for panic that the heat status causes on enemies is good and I see no reason to change that functionality.
This may also add value to status duration mods, as the longer an enemy is on fire, the hotter their armor would get, the more damage they would take. (Just like cooking with a cast iron skillet with how good they are at retaining heat)
If all heat status falls off, panic and damage ticks would stop as it does now, but an enemy that has been on fire would retain their armor's vulnerability to heat status until their death.
As for the Infested and Corpus, the infested are already in a good place when it comes to cleansing them in flame even when they receive bonus armor from infested MOAs, meanwhile this may be an advantage to the Corpus they they have over the Grineer for once as the scaling affect might not need to apply to their shield as it would just diminish when damaged, dispersing the heat away from the shields user.
All this sound good to you guys, any changes recommended? Feel free to discuss.