No, OOB just needs some more option to filter troops, but returning to the old system is not good enough and isn't going to happen.
I made this suggestion just saying we need better filters or options.
https://forums.taleworlds.com/index...nt-i-want-more-direct-control-of-this.448910/
However you can do pretty well separating them, I was able to separate Khan's guards from buck-a-larry HA with some trial and error, just adjusting the slider with a rough Idea of how many non pole arm HA I had. It would be easier to also just do it manually though.
But no I don't want to see the old system return, I just want more option on the OOB.