[asveikau]

I think i agree with what you say, however, an important detail is that any given bug (known or not) has pretty low odds to be architecture specific.

Afaik this article is a big deal because it's JIT, so a big chunk of architecture specific code to get good performance. But most code is not going to be that.

That's not to say that architecture specific bugs will not exist. But i think your outlook on this is a little pessimistic.