Here is what I learned and this involves several email exchanges with BohningThe Bohning Insert Iron seems like a temping glue. It is advertised as having the strength of gorilla glue but the heat reversibility of hot melt.
How easy is it to get glue in points out? Is it a safe amount of heat for all carbon shafts?
some epoxy is heat reversible in aluminum shafts but generally what you say is true.this is why you don't use cyano glues for points if you have any ideas ever of getting them back out. you need to put so much heat and torque into the point to remove it that the shaft is ruined in the process.
cyano and epoxy glued points should be regarded as permanent.