Can that happen for real :D That would be the perfect scenario hahah
"What happens if SegWit has a real issue?
In this case Bitcoin Cash could rise above Bitcoin if it cannot be fixed.
As things are right now I see it as unlikely that SegWit has a strong flaw...
If you were a holder of Bitcoin before the aug. 1st hardfork you have both, so it could be a zero-sum game for you... what you gain on one side you could loose on the other side...