Read it as you will. I don't see it as being nice to Wall Street, though it was said diplomatically. She didn't say "all you motherfuckers and cocksuckers" once, which is probably the litmus test minimum for some to be "tough on Wall Street", but from my view it was a come-to-Jesus call delivered in the halls of finance for shouldering some responsibility, especially with mortgages and helping to kill the American Dream, a few months before the shithouse crumbled.
I'm just becoming accustomed to reading these things as if I spoke a different language. Huffpost says this wasn't "tough". I'd beg to differ, and I suspect if Hillary had been President in Jan 2009, the bailout would have come with more strings attached. Just a feeling, and we all know what feelings are worth.