So lets talk about it in 2 years, I mean now it is fast, it lasts...you want to tinker with a phone to make it faster, last longer, this and that...but now you don't need that with this phone, it isnalreqdy performang about as good as it gets..that is what I am saying -> talking about the global version of course.
You can customize it all you want with different launchers...
Also I doubt anyone who is messing around with root keeps the same phone for 2 years, usually these guys want the latest out there...
Flagships -> this cost me 500 something Euros on GearBest, Samsung and the rest would have cost me about 300 Euros more (but for LG G7)
So the fact that you dont have open bootloader or sourcecode for the global version of this awesome phone, IN MY OPINION, should not be a big deal...as it already performas great/outperforms other flagships (battery life/sot as an example...this problem seems a bit like a false pretense to me, thats all