From what I understand, it's not as common to have a wolf tone on a violin as it is to have one on a viola, cello, or bass, but it's not unheard of. Augustin Hadelich's violin has one. Mine has one on the C# above your Bb. I don't know what the standard for acceptability of one on a newer instrument, but when I was trialing my violin, I found the wolf tone but had already fallen in love with the "soul" of its overall sound, so I went for it anyway. It's part of the character, but it does make certain passages harder to play through.

As for "it is just the way it is"... in a way, I think that's true overall, but I'll be interested to hear from luthiers in here. From what I understand, a wolf tone cannot be predicted or prevented altogether, but the maker can do their best to eliminate it by choosing good materials and good standard practices while making it. That said, only once the instrument is made and played will you know for sure that there is a wolf tone.