The GFA has to be revised - that should not cause some massive discord unless people want to make it so.There was no weaponising until the DUP decided to make it so.
They threw a spanner into the works of something that had the potential to succeed, if compromises were made with a few red lines.
They would like nothing more than to renegotiate the GFA which they never agreed to.
This of course is something that you have mentioned would be part of your plan also.
There is a lot of sub plots going on @mcfc1632 but one man's version of the truth doesn't match everyone else's.
The conditions that were prevailing at the time it was established will no longer exist - therefore it is only logical that the parties discuss how to revise it to reflect the new situation - there was no need for it to be made into some 'explosive topic'