I have no argument if a kit is long out of production, etc., and there are no spares around. My problem is that (1) it happened in the first place and (2) corrective action was not taken when YMW was made aware of it (as they were by several modelers) and (3) because it is a very common part across all the ships of that class, why not send a spare cut from another sheet?
Steve Wiper, when he was producing kits, was absolutely fantastic when it came to missing parts or even parts a modeler might screw up or lose. He replaced them with no hesitation. On the other hand, ever deal with BlueWater Navy? Mike Bishop was paranoid. I had a BWN West Virginia that had a hull so badly warped and full of air holes, it looked like the real WeeVee on Dec. 8, 1941. No matter what I did, including sending pictures of the hull, Mike Bishop refused to do anything and even accused me of trying to get a free hull out of him to build a second ship. Yeah, right.
Then there was the USS Atlanta from ISW. The castings, metal and resin, were so horrible with flash and incomplete pours that I sent the lot back saying please examine and replace. I got the original lot back with a note telling me that a real modeler would not have a problem with fixing the castings. Last time I bought one of their models.
So, when it comes to excuses for resin ship kit makers, I have litte sympathy when their customer service attitude is usually somewhere between an annoyed pit bull and a spitting cobra. As I said, there are exceptions like Steve Wiper, but far too many have no customer relation skills whatsoever.
BTW, in case you wonder about my modeling ability and whether or not I can fix or replace a bad casting, if you take a look in Great Scale Models 2008, the E-boat is mine. I also took a third at the IPMS Nats in Kansas City in scratchbuilt/conversion ships with a 1/350 USS Louisville. I don't mention those ships to brag but to point out that I know how to model. The issue for me is not whether I can replace a bad casting or a missing PE mount, but rather if I have spent my hard earned dollars on an expensive resin ship kit, why should I have to?