As anyone who has spent months, and sometimes years, designing something on paper can tell you; "stuff happens" when it hits the manufacturing floor.
By then (unless it is a show stopper), it just gets built as designed. There just is no time to halt production and run out and buy several thousand door stops.
If some one on the floor sees the problem, it "may" get up channeled to the design folks for resolution on the next year's model. Then again, "The not invented here" or "not your job" glitch may keep "the fix" out of next year's model too.
This is not an RV industry problem, it is a universal problem.
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW