Gammon Bombs are currently not an issue and there are many more important things to look into with the limited time and resources that are available.
/thread really
We should be thankful that we have involved community members still working on patching the game and not pestering them with concerns that are primarily born out of theory crafting. I mean I totally agree that HGB aren't in any way optimally designed and a relic of original Brit design but at this point they aren't a problem and in fact are hardly ever used. The effort to tinker with them and monitor the changes are FAR more time intensive than keeping an eye on theoretical "it's marginally more easy to smoke and nuke things in the late game" concerns. If anything changing them will make them more prevalent and game breaking than they are currently or will be after the patch.