Did you see that double sway bar setup? Two is better than one!
More than stock sway bar torque on a motorhome is generally good for most folks who travel surfaces where the ride is unaffected. Uneven surfaces common to dirt roads and other secondary surfaces is where individual bump spring force transfers unveil the negative factors.
If your freeway ride gets harsher on expansion joints when increasing bar torque (CHF), it is most likely due to improper link angles that cause the bushings to play a factor in bar travel. With proper linkage, sway bar torque should not effect ride when bumps flex springs left and right at the same time e.g. typical expansion joints.
Stock bars compromise for a wide range of conditions and chassis uses, so of course not ideal for max loaded RVs that only travel on freeways or primary roads. Inversely, the ideal condition for dirt roads is to disconnect a link arm (disable torque transfer). The stock bar on my Axis is tuned nicely for the secondary road conditions we travel most.
Electronically adjustable swaybar would be great, though most RV'rs would leave it in the more is better position! I'd like push button disconnect front & rear please