George has written an update regarding the last episode:
One of the most successful monarchies of all time had a 7 elector system.
It also makes sense in Westeros, how they executed it and who they elected is another matter.
You seem to forget one of GRRM's stated purposes in writing the series - to teach genre fans lessons about how things don't work out the way they want them, to specifically defy your narrative expectations.
Calling the Holy Roman Empire successful is stretching it quite a bit. Not to mention that it was very unstable, so exactly what they tried to prevent with going for an elective system.
It lasted a very long time and it's not like anything else is that stable either. In their world it makes sense no point gambling on over throwing a dynasty when you can get elected. In theory it would keep the blood bath down.
A lot if that was due to the reformation, which caused problems elsewhere with different government systems.
Every government system seems to have problems, Democracy hasn't been around that long either and has issues.
Seems to be more of a human thing.
There's lots of wars anytime I don't think government forms mitigate that. Might be getting a bit close to the no politic thing thing though.
Humans are good at being cruel to each other.
Yes, but internal wars are something different.
France with its centralism never had that much of internal strife as the HRE had. And as the goal of the kingdoms in GoT was to prevent further conflicts between the houses, choosing an elective succession is the worst possible idea as the HRE shows.
HRE had lots if religious strife and different cultures. Westeros only really has one plus Dorne. The 7 is also the default faith for most of Westeros with a little old God's in the north.
France had big problems with the reformation and the decentralized nobles.
Again, you ignore all the wars inside the HRE before the reformation and there were a lot of them. Without a strong emperor, and the electors did the best to elect someone weak, the princes inside the HRE could do as they please, including waging war against each other, which they did often because of matters of territory or succession. Religion only later became just another reason to wage war but was hardly the only one.
I'm not ignoring it up there were other wars elsewhere . Look at the 20th century with entirely different forms of government. Or the War if the Roses which GoT is based on. You're going to have wars regardless.
And these days people have genre expectations based upon tropes established in Game of Thrones. I wonder whether he considers that a success or an irony. Did he break the wheel, or merely forge some new spokes?