In my opinion, it plays just like the last gen tiger games. It's got a lot of the same feel to it.
To be honest, I don't feel it's changed too much since release. They fixed up some bugs, they've added two courses at this point, so that's nice. It's still pretty bare though to be honest.
The career mode is... ok. I really wish it had a calendar so you can see what's coming up, but it doesn't. I forget the number, but there's like 15-20 tournaments I think on the schedule that you play through.
The two courses they've released as free DLC, have both been incorporated into the career mode schedule, without having to restart your career, which is a big plus.
This very thread talks about what EA plans to continue to add as DLC...
Bottom line to me... if you're on XB1... I'd get EA Access, even if just for one month to play the 10 hour trial. Check it out for yourself. I like the game, it looks good, commentary is nice, the celebrations are terribly done, it plays like you'd expect an EA golf game to play, but to be honest, it's lacking substance still. Needs more courses, more game modes, and IMO, it needs them much sooner than the March timeline EA is apparently trying to follow here.
I think that addresses your points.