Howdy!
I think if your goal is to buy "an enormous, impractical zombie slaying tool just for the hell of it" then the scourge is definitely going to tick that box. It's a fun, rugged and scary khukuri that's very dependable.
At the same time though for most of my life so far there I haven't experienced much apocalypse-like conditions. If this trend continues for you also then you might get more utility and performance out of a blade that doesn't lean quite as hard into bombproofing. The khukuri illuminati praise to the altar of the rat tail tang under a full moon- maybe there's something to it?
Feel free to DM if you'd like to discuss.
Take care,
Andrew and the team at Kailash