My justification was that this senate would likely impeach you if articles of impeachment were ever introduced, whereas your chances might be a bit better if the regional executives were involved. If you'd like to concentrate the impeachment power in just ten politicians and trust their judgement, I'll withdraw my suggestion altogether.
My thinking was that including the regional executives would show that we're trying to be more represenatative of The People, as this amendment would completely remove their voice from the impeachment process otherwise. Moreover, it's not like the regions are detached from events that happen at the federal level. They're just as much a part of Atlasia.
I don't care about my "chances". I care about a fair and sensible process. There's no reason to change the amendment process in any way, shape or form. If a change is made, however, it certainly need not involve regional officeholders.