It seems, at least, it's not AMD fault or not only AMD's fault. If the failures are heavily leaning to one MB vendor, either that vendor is much more popular, or it's something specific to what that vendor does. Now ASRock is popular, but I don't think it's that popular that it sells 10 times more than Asus and Gigabyte combined. I hold no lost love on either Asus or Gigabyte, but this seems like ASRock needs to investigate further.
Also, the number of X3D failures vs the estimated number of sold X3D chips show this affects only a part of the market. And this is anyway limited to X3D chips, not the whole lineup like it was the case with all i5, i7, i9 in the 13-14th generations. So yes no one cries foul about this happening and AMD is still the better choice vs Intel. Also, AMD seems to rest on their laurels much less than Intel did in its hay day - such as 10-12y ago, when Intel delivered small gains year over year at highly overpriced prices - and AMD only had meager offers of Athlons, Opterons.
However, I do want a strong Intel, because in the end any company could start resting on their laurels in the lack of competition.