Jackie Robinson's steal of home

[greymule]

I suspect that everyone who frequents this forum has seen films of Jackie Robinson's famous outright steal of home (off Whitey Ford) in the 1955 World Series. The argument Yogi Berra put up was quite vehement, and the play was certainly close.

But when watching the series highlight film recently, I noticed that Yogi Berra clearly stepped well out onto the plate to catch the pitch, denying the batter any chance to contact it, whether by bunt or swing.

So my question is, Should the PU have called INT on Berra (or a balk on Ford)?

(I'd post a video capture, but the DVD is packed up for my move to Alabama.)