You can always just undervolt the cpu and take out the gpu. Sure, a 1000w power supply is going to be inefficient at 20% draw, but if you already have old hardware it isn’t always cost effective to replace it just because of a higher power draw.
Also the pi is great for stuff like dns and network storage, but it’s going to struggle with transcoding as a media server. I can’t speak for the 5 from personal experience, but the 4 was completely incapable as a jellyfin/plex server. I just use an old stripped down computer for media and the pi is relegated to dns adblocking.
For daily use, sure - but it completely excludes itself as an option for road trips in the US and parts of Canada. There’s a stretch of interstate road near me with nearly a 100 mile gap between service stations.
I know that this isn’t the purpose of this battery, but it’s a valid reason why a lot of people might be hesitant to buy one. Many people can’t afford multiple vehicles for different purposes. You have the car you drive to work with, and if you happen to go on a trip you just use the same thing.
Maybe 99% of use occurs within constraints that this battery can handle, but if you can only afford one vehicle, then this is still a pretty suboptimal option. That being said… it could still be cheap enough to not matter. I didn’t see any mention of price in that article.