It has been this way forever.
I am an accountant who wrote a utility called TBX Trial Balance Exporter back in 2004, which gives you these options. I don't see any sign that the T/B will be changed in Desktop.
The names can be split once in Excel, but if you want to save time, try my 3rd party app.
Here is a link to the QuickBooks Desktop App page:
https://desktop.apps.com/apps/167772/tbx-trial-balance-exporter#!overview
