It can be done.....though I prefer to do at home, if possible! If an issue arises, we’re at home to better fix the problem....tools, parts, local hardware store, etc.!
What possible issues could you possibly come across from rv’s?. These things are rigorously tested to withstand any environment and then meticulously assembled using the finest craftsman and parts known to mankind. Strict quality control is adhered too along the entire process and then when finally assembled gone through with a fine toothed comb to look for the slightest of imperfections or defects. Only then is it shipped to the dealer who will do another detailed inspection before being put up for sale.
I dont think I have ever heard of any manufacturer issues....sounds made up to me!