Kind of support that.
It's not worth to buy for around $20 but also really hard to use without docks or any handmade board since there are only 2mm pins.
With shipping it becomes not so cheap and it makes O2 almost useless for most of possible applications.
Yes, O2 has many GPIO pins and it can be helpful if you plan to build some kind of robotic platform or automatic plant with bunch of sensors and controllers.
In the same time O2 consumes too much power for dumb MQTT sensor reader (and there's ESP8266 for that).
But since this board has not so much RAM it's impossible to run something like Home Assistant or so. In that case you will prefer RPi/C.H.I.P./etc.
Building custom linux distro also not so easy and only way is to stick with LEDE. Not a bad one but there is still some troubles with mt76 driver.