First, stop dictating how others should play, you like the career mode, I’m happy for you. A lot of us don’t want to go through those hurldes and don’t like these missions being locked behind a career. Making missions available outside the career mode will cause more interaction, not less.
Of course something is lost, I would assume a lot of people bought the sim exactly because of the new content (fire fighting, SAR, crop dusting etc.) only to find out they are locked behind a (very bugged) career mode which you are forced to play because otherwise no access to the new content advertised.
It is not hard, but some are simply not interested. You say you have flown 100 hrs to unlock the tree? That is far, far more time that I’m willing to invest (and far more than the weekend of playing promised by Asobo). I gave it a try, only to be met with game breaking bugs, the last one I did, I couldn’t finish a 1 hr long mission because I couldn’t set the parking brake on the R66. I’m not spending a second more on this.
If the career mode is so important for MSobo as you claim it is (without providing any evidence), I think they would have made sure it is working properly before release. It feels like it has been slapped together in a hurry without anyone testing for bugs. The only one destroying career mode is Asobo themselves at the moment.
Asobo’s reason given, namely, players would otherwise be lost if they can freely fly missions, it’s nonsense for experienced simmers.