I see you have finally backed off your blanket all encompassing position that EOM repair parts are no good and not the same quality as assembly line parts, to a more realistic statement that they are not "necessarily the same." That is good, reasonable, and correct statement.
There is no way every replacement part is exactly the same as every assembly line part but manufacturers strive to ensure they are functionally equivalent. Even assembly line parts can change mid stream for many reasons like a supplier can no longer keep up. EOM auto companies have a huge investment in their brand name and would never purposefully sell defective parts. Every company however sometimes sells a lemon or two. Engineers make mistakes, suppliers don't meet specs, etc.
You don't comprehend the reads too swell do ya?
I don't think EOM means what you think it means. Could be "end of Message" or "Expenditure of Manpower"? Seems like the term you are looking for is OEM which stands for "original Equipment Manufacturer which, coincidentally, is what my business is.
I clearly stated that American vehicle manufacturers like Ford, GM and Stellantis don't care that much if the parts they sell are the same quality level parts used to build vehicles on the assembly line.
I was very specific and I'm not changing my claim. I make products that would not exist if the OEM parts were the same quality as those used on the assembly line. I don't need a keyboard genius explaining to me how this works. 10 years of my life developing and selling products to solve a deficiency in the market created by low quality OEM parts (specifically Ford parts BTW, but not hoses unfortunately) is enough for me.
Hopefully people with fully formed brains can take my statements into consideration and have a little less blind faith in overpriced dealer parts.