User blog comment:Crimpycracker/New ME3 details that could make you very angry/@comment-3430127-20111106083218/@comment-4301893-20111106202246

There was no flaw. It may not happen at all, as I said before, but there is a chance it would. You can't say it's impossible. The only way it would be impossible for the MP to definitely not have any effect whatsoever on the SP would be for the MP to not exist at all. That's what people are mad about.