My basis of comparison is really my ongoing career spinner, which I play on Pro so I can bat as well as bowl - there was a point after 1.14.2 that I pretty much stopped playing outside of online play, simply because of how unrewarding things were feeling. One of the 1.15 updates certainly tipped it back for me, that's why I'd say it is improved.Agree with most of what you've said but couldn't disagree with this part more strongly.
I haven't had a chance yet to talk with those working on that area of the game about what the complexities are in that area and what the scope for changes would be.
I'll try to find out.