Timely post.  We took our 2020.5 195  on a trip to southern Colorado this past weekend, and tortured it on 14 miles of gravel (washboard in places) on CR 520 south of Badito (look it up) heading to LaVeta.  One pocket door screw pulled out and the metal plate attached to the other support snapped, probably due to having to support most of the weight of the door after the screw attaching the other plate pulled out.

The entire assembly can be seen here, with the plates I'm talking about below the three-wheeled unit that sits in the track that is screwed into the ceiling and much of which is inaccessible as it extends into the "pocket" (which renders my first thought at a repair impossible, namely adding maybe three more wheeled assemblies to distribute the door's weight among more support points).

I'm going to try fixing it by getting new plates and longer, more robust screws and maybe adding washers.  If that fails I'll try one of the methods mentioned above.

I also note that the door is relatively heavy; maybe a lighter door would mitigate this issue, as would staying off washboard.  Maybe.

Just my opinion. I don't like drywall either. 

You can also enlarge the screw hole to 3/8” and use a 3/8” dowel, then insert your screw directly into the hardwood.

Just a minor correction to Offgrid's response.

Pocket doors are NOT prone to failure IF they are correctly installed and use quality hardware.  As a retired Licensed General Contractor with over 30 years of experience, I can say that I have installed

many pocket doors and never had a recall or warranty issue.  I have 7 of them in my house built in 1974 and they all work perfectly.

However, as we all know, quality installation and quality hardware are not always used in general and specifically in the RV industry. Sad, but true in most cases.

Vann