I'll stand by my point... If you start rowing heavy enough with that grip, it's not IF, but WHEN.
My thoughts on this are aligned with Dante of DC fame, I think it's safe to say that he is more knowledgeable about bodybuilding than anyone in this thread.
And kinein, this has NOTHING to do with the rows/biceps thread.
Even when not necessarily consciously contracting at all, the biceps is part of the kinetic chain (i.e. deadlifts), and that chain is prone to shatter at its weakest link.
Again, we are not idiots discussing this here, we know how to contract our muscles during a row so as not to contract/target the biceps.