I preface this with a statement that I'm brand-loyal to gliNet products. Love them to bits. I love that they're based on OpenWRT, and that you can ssh into them. But their user space tooling stinks.
They have 500MB RAM. My home router has a current uptime of 24 days, and half the RAM is still free. It's hard to tell how much persistent storage is on the device, but there's at least 50MB free. They could have put something a little more capable on it. It's what I'm currently fighting with - I want to script it so my VPN exit node auto switches at random times to random nodes - and it's just frustrating with the onboard tooling.
This isn't the first time I've run into it; it's not frequent, but it's happened more than once, and I think it's just a sloppy, lazy decision someone made.