I asked support to forward me your images you mentioned, and I see the Item Specifics window with all options in the *Style* specific.
If you were to go and check the lister on eBay in this category (Music>Records) you would see something like the screenshot I posted above. eBay no longer limits the *Style* by the *Genre*.
I did notice that if you were to post to eBay UK, you get the old experience you are speaking of:
Unfortunately, that is only in eBay UK.
We pull the Item Specific lists from eBay directly and for some reason they decided to remove the link between *Genre* and *Style*. Our lister has to reflect what eBay is requesting, and for the US eBay site, they have separated those Item Specifics.
I hope this helps clarify the situation.