Because if they can't fix it, they will have to cancel/postpone the VU.
If we already know what is going to happen, many here will manipulate the market to their advantage.
fair enough =)What if they would have to revert and postpone the VU entirely, while already have revealed some beneficial future info?
Do you really think they test the VU after installation? Even MA can't be that bad.if it helps imagine stuff being thorougly tested and not some delivery guy missed the address where to deliver the hamsters