No, I understand your points. I may think you need to specify what you mean by “customizable”. A lot of stuff users normally do, like theming, installing random stuff etc, works. You can layer, build your own image etc.
But this is not the point as OP was frustrated about having an OS that even though promising to be reliable still breaks.
And whining about “oh I cant tweak it” is just not at the correct place there.
But of course my answers were kinda harsh, sorry for that. But these issues are really nonissues if your priority is having a working system.