I only vaguely looked into all the conversation that went into this feature. But my sense is that, in a nutshell, folks figured out, after a lot of really impre

I only vaguely looked into all the conversation that went into this feature. But my sense is that, in a nutshell, folks figured out, after a lot of really impressive work on ironing out all the details, that there just isn't any to integrate this feature into the existing language without introducing footguns. The decision then came down to, "Do we drop the feature, or push it through anyway, warts and all?" And some combination of strong desire for pattern matching at any cost and anxiety over sunk costs means that the second option won. IOW, design by committee doing what design by committee does best.