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That assumes that everyone, and every algo would take those metrics and translate and interpret them into a consistent share price. The value of any company, is only loosely linked to it's performance at any given point in time, and is highly dependent on assumptions (eg. rev. vs. cost growth) over time. This would reduce the information disparity between insiders and the market, there's still plenty of room for speculation.

Until there is a “fluke” in the data. A bug, or an exceptional change. Things that would normally be corrected in the manual GAAP process before reporting.

But now all the algorithms crash or bubble the stock price and a lot of people loose money.

I’d love to see such (near-)realtime metrics though

No, because even assuming an efficient market, future earnings are still uncertain, people will have different opinions about them, and that's most of the ballgame.