I guess the reason why someone is rejected for a sibling is relevant. I’m not sure what reason they gave but sure it must be upsetting in some circumstances.
I know two sisters where the younger was much prettier so it happened that people asked for her all the time even though parents were really looking for elder one or in one case they met and then chose the younger one and the parents went along with it because they liked the guy a lot. I think that’s harsh. Whereas in this case I think there’s a more legitimate reason. Neither of the two feel comfortable with it because of this unfortunate coincidence with their names. It’s not you’re not good enough for me because of any personal reason. I do think people are being too sensitive about the rejection. Surely people get rejected all the time because they are not suitable for various reasons. Sometimes people turn down a rishta after looking at a pic! If someone turns you down for an inoffensive reason it shouldn’t be that upsetting.