not to attack you or anything 
but the issue is with the expectation it to be written as experimental which it does not on their site, and i think at the time present the devs also did not expected it to be such experimental, now wether im fan of it to write it now on their site, i don’t know if that makes sense.
if you look to the mediatek sdk its a world of difference in stability but the regressions are the only issue for now, but easier fixable than diagnosing open source drivers which are based/knock offs from the kernel hacks inside the patented closed source mediatek drivers, which they are also try to clean into better code, though the drivers are 100% non identical.
i think the device got to over estimated, also in the beta test we had used the mediatek sdk one, until it got sudden changed to latest OpenWrt snapshot which i think is a over estimated step with too much risk than expected, i also did not expected it to go this route.
Okay expecting a product to have some quircks and its tinkering fine, but not with these type of bugs around it or the issues, and if they report it the last they want is someone telling it’s normal, i was like this too in the beginning until i noticed the real issues with 2.4ghz.
^ imagine you got a new kitchen appliance, but to use it you need to require wifi, but wifi does not connect, you suspect the appliance to be broken, thats how my experience went and i think that example speaks also for the other people, it can be very furiating once it does not work
, even as IT person that situation alone gives you a false sense of security and you almost throwed away the kitchen appliance, luckily i did not throwed it away cus my phone next to me had also issues connecting for a instruction manual 
of course ive said this before the hardware is experimental, it is possible to know this beforehand like in my case due to my hobby with OpenWrt, but i also unexpected/over estimated this😉, but instead i have patience and arranged changes by using a other router for wireless, now my flint 2 is rocking solid with banip, and docker.