Just my 2 cents; it was about as "realistic" as anything one could expect to find on a mainstream TV drama; the girls weren't ridiculously portrayed as some kind of kung-fu ninja masters, so they fought in a fairly realistic style; and because it's a "serious TV drama" there wasn't any overt, or even tongue-in-cheek sexuality added (like ripped tops, exposed boobs, semi orgasmic gasping and grunting, or anything like that); so, just a nice little feature for those who like this stuff, but nothing particularly prurient or erotic about it.
From a show standpoint, I can't stand Beth, so would really like to see her get the snot smacked out of her, regardless of who does it, and if it could have happened in front of her husband and father so much the better; but as a noteworthy catfight, nothing special. But still fun to watch. Just a postscript; Old-time westerns (50s-early 60s) did this stuff much better!