I honestly believe most of the current problems are down to them shifting from the season model to an upfront delivery model. They've basically said so, in relation to why Beyond and 2019 have been thinner years for updates.
Pretty sure:
2017/18: they split the team in two. Half works on Beyond, half moves on to the New Era.
2019/20: most of the Beyond team move onto New Era leaving a skeleton crew to finish off some small updates for which the groundwork was already laid.
If that's right, 2020 has been worked on by more people, and for longer, than Horizons. It could be a pretty big deal.
That's why I'm not as up in arms about bugs and stuff at the moment. The skeleton crew will fix this stuff in time. I'd rather FDev didn't panic and start pulling people off the juicy 2020 stuff (which is all I'm really biding my time for) to fix Arx etc.