Assuming Roadmaster makes a stabilizer for the new Ford chassis, I can't see where it would hurt and would be a benefit in the case of a front tire blowout. But, there are other things to consider.
After loading your rig with gear, have you had the front end aligned? Check your owners manual to see if this is recommended as it is with my Bay Star. It seems best to have it aligned with the weight as close as it can be to actual traveling conditions.
Secondly, have your tire pressure set based upon the actual wheel or axle weights of your rig and the inflation table that is provided (hopefully) by the tire manufacturer. The ride and handling of my Bay Star improved after getting the front end aligned and adjusting the tire pressures, and I allowed a bit of room for safety.
After that, all you can do is try to see what others are learning about the new chassis and whether heavier sway bars are an option or worth doing.
And, since I don't know what motor home experience you've had, I'll just say that when it's windy, you have to monitor your speed. I keep my speed at 65 mph or lower because of the towing restrictions of my toad (Malibu), but find in bad crosswinds that it's better to keep the speed around 55 to 60 mph.
I've recently tried following one suggestion which is driving with a full tank of fresh water. There is some thought that it helps with ride quality and stability. I've only done it for one trip, so I can't say whether it's a good idea or not and with the new chassis...who knows?
Good luck with your new rig and many safe travels!
Retired but busier than ever!
2012 Newmar Bay Star 3302
5 Star Tune, SumoSprings, Roadmaster Steering Stabilizer, Blue Ox Avail
Brake Buddy, 2015 Chevy Malibu