Kudos to you for your commitment to your parents.
Yes, Newmar attempted to solve the ramp approach angle problem by placing an angle in the ramp door. This has 2 disadvantages. One is that now the ramp is not flat and not very usable as a patio. The other is when the door is closed, the angle bulge protrudes into the garage space, which effectively decreases the garage carrying capacity, a big problem if you have a long toy.
Thor has a much better solution to this by incorporating the loading angle into the garage floor itself, which leaves the door ramp flat. This is a much better design solution. The angle is not perfect for every vehicle, but I have loaded 6 different vehicle types into my Outlaw garage without any problems clearing the OEM approach angle.