These false preconception threads are always the same. That somehow Frontier made "mistake after mistake" stated as somehow complete fact. Frontier and ED has been successful for the four years since main release. They took time to gradually add on features. They were busy with PC and JWE as the company has grown with a new building and they had never abandoned the game. A misstep or rather more of an obstacle FD overcame, could be the PS4 port which took longer than normal which delayed imo the progress of Horizons.
Frontier is hardly like or implied to be a criminal enterprise "turning over a new 'leaf'' as they never had stooped to shenanigans such as the preorder lying hype of NMS's initial infamous release, nor the shifty ponzi shenanigans of CIG & StarCitizen. If anything, Frontier successful capitalized and allocated more resources increased the dev teams for ED to a hundred at or near the beginning of Beyond. So yes, they are positively ramping up development as they can now manage more "time and resources".
Still, Horizons could hardly be considered a failure. The thargoids made it back with outstanding visual and sound design. SLFs , and holo-me avatars arrived probably a foundation step for spacelegs and expanded multicrew in the future. Megaships and stations came along. Chained missions. Overall it's simply hard to quickly expand on a game of unprecedented scope of such realistically modeled precision at different levels. Frontier was the underdog and as they grow into a major player, of course more resources could be become available to expand on ED in the future in their ten year planning and hopefully beyond.
As for the tinting of the skybox, imo, it's annoying, but it seems to be a tradeoff currently acceptable for the vastly improved lighting from several other visual perspectives. FD are probably aware of the opinions by now so they may take steps to mitigate the effect. In fact I'm far more used to the more vibrant colors now and it can be very effective as opposed to the lower contrast we had before, so maybe they'd already did some adjustments since the recent patching. I've noticed a higher resolution screen also helps mute the colors more and tinting mainly occurs when jumping in a system where as the one pilots the ship away from the main star, the skybox colors revert back to normal.