That's cool. I can see that motivation for some folks.
For me, for some of those brutal hike-ins, especially the ones where hike-out is all uphill... I like that it doesn't hardly weigh anything, and that with the bag... you can scoop water out of ridiculously thin puddles of water.
That proved very useful for me.
Heat was getting to me when down in there this one time. With the amount of water I had left, only way I could do the uphill would have been to wait until nightfall. But I was feeling miserable and my guts were all torqued-out and I had the chorro goin' on (the Latinos will know what I'm talkin' about) from a stupid dehydrated meal that I hadn't noticed in the ingredients list, like most of them do, they just try to throw bunches of red and green bell pepper and other gut-bombs at the problem of taste (among other things). Some number of years ago I finally figured out that my body DOES NOT like those common ingredients they throw at cheap food to attempt to make it taste better.
So anyhoo... because of having that filter, I was able to fill back up to full water carry, which I would need in order to go back uphill 7 miles in mid-day full-sun no-shade 90+ F heat in Angeles NF.
Got a young friend I've hunted with a few times in the beginning, he had a sterilizing UV pen thing. But only thing there is, what happens when you run out of battery power, ya know?