In support:
I am not at all impressed with Russian engineering or craftsmanship.
Against support:
Not all of the Mozin Nagants were made in Russia. (Like AK-47s, many mods and differences in production by source)
I don’t own one, but a well made version would not frighten me. Looking at the failure photos, it appears there was an existing crack that is very old. The recent failure portion is evident from the photo.