When I stopped serving the loops, I did nothing to the strands and they tended to separate when removed from the bow. Putting them back on meant sometimes one or two loops were missed and I had to re-string the bow, which was a fiddle. However, I don't remember ever having a bare loop break. The reason I started the Friskney method was just to keep the loop together for easier stringing. Prior to that, as an interim measure, I put a short narrow strip of duck tape round the extremity of the loop just to hold the strands together. The sides of the loop were bare.
The reason I did unserved loops in the first place was because a more experienced archer( I was new to archery then) explained that under the serving, the bow string can wear away and cause a break before we see any signs; with no serving, he could see if the loop was showing signs of wear and get in first.
That was in the days of Kevlar which was notorious for breaking without warning.
I have unserved loops on my compound and the loops show no signs of wear, although they don't really move on the pegs.
What I think is, that if the strings showed any damage as a result of not serving in the usual places, with the usual material then at least we would see it in good time to take action.