These doors are friction doors. Supposed to stay open in winds up to, I think, 20mph. Mine will start to close in less wind than that. What I like about these type of doors you don't have to worry about pulling the anchor off the outside wall. To help with the groaning noise you could lightly lubricate the doors with some dry silicone spray. Something that will not attract dirt. You don't want to lose too much friction.
We love our 2017 251rks (bought in 2016) quality has been great. The only think that happened, to us, is the wires for the slide under the slide when below the mechanism and rubbed against the tire. The wire and support plastic was shredded. A quick repair and we were good. I added a small hinge in the middle to help with the bending. This is the only really poor design. I did adjust the support that it was pointed up more. Now we have no more worries.
If you have any questions please ask. It is the only way we can help each other.
Good luck and Happy Camping.
2017 Forest River Surveyor 251rks
2016 Chevy 2500HD