I suppose it depends if you want to ride it or show your mates how light it is in the car park
No need to be sulky.
I’m a huge fan of short-travel 29ers and I’ve owned quite a few and ridden a few more.
There’s a big difference in feel and in capability between the heavy and light ones (and thus the kind of build that suits them).
I think the test for a “downcountry” bike is to ask “could I race XC on this in a pinch, and not be really frustrated?”
The Spur would likely pass that, the Smuggler or FlareMax wouldn’t – for me. But then they’d be better for riding down mountains or racing the odd enduro.
Neither is “better”, just the OP seems to want something light and lively.