Spot on whiteovies, there is always an answer,it just needs to be found.
I would suggest that the IPP issue isn't literally melting the metal away, it is to do with the metallurgical aspects of steel, heat and repeated heat cycles.
There was a whole lot of work done post 911, take a look at Fig 2.2 in this one and consider a straight heating issue from the IPP.
Heating steel frame thesis
As previously any related issues can undoubtedly be solved, it just means a reconsideration of the design criteria and suitable modification. Whether that is cost effective or not remains to be seen. I'm not sure Thermion has the scale and wear capability that would be required but it may well do. As always one of the key benefits of military expenditure is we get a lot of domestic applications from the technology they invent.