A new RV is an assembly of literally 100,000's of parts/materials that come together for the first time. In much the same way as a house or a car/truck, an RV is BOTH as far as complexity of design/construction goes. To expect EVERYTHING to be perfect upon initial delivery is, IMO, unreasonable. There will always be flaws in even the most expensive RV's. What is reasonable is that most flaws be corrected in a reasonable time which is a negotiation between the manufacturer, the seller, and the buyer. Depending on the nature of the flaw, that time may vary. Some customers are never happy, no matter what. They see flaws where 100's of others simply . . . . . don't. That is unfortunate, but, a fact of life.
Be happy that you can afford a new RV and don't expect granite counter tops and leather trim in a starter model wnatever it is!
Chum lee