How much is one to try to get fatha.kasra mistakes corrected in the Quranic verses written in Youtube videos?

Assalam-o-alaikum warahmatuAllahi wabarakatohu! I was following a Surah Yaseen recitation on Youtube. The recitations of this qari really touch one's heart and are very beautiful. There were Arabic and English captions *embedded* in the video. However, the other day when I was following, I noticed mistakes in the vowel markings (fatha, kasra) in the Arabic captions. For example, in the following image, it should be fabasshirho (and not fabassharho) - this is one example, there are many mistakes of that sort. So I left a respectful comment, requesting that them or their team looks into it. But I didn't receive a reply or notice any change in the video. I think they missed my comment. My question is that how critical is it that I get it notified to them? Should I email or message (like direct message) to them on other social platforms or should I let it be? It is Quran, so I feel I should try to get this corrected, since I have seen it, so it has become my responsibility, and what if Allah questions me about it? I don't want Allah SWT to be disappointed (Allah forbid) in me.