Delayed Dead Ball or Not?

[GarthB]

Originally Posted by Dave Hensley

That's all well and good, but if we're only talking semantics, we might as well be discussing why it's catcher's interference in OBR and catcher's obstruction in FED. It's the same offense, and it's the same enforcement - delayed dead - whether we call it that or not.

I think it is more accurate to deal with as Evans teaches. Will the ball ALWAYS become dead on catcher's interferenece? Or will it either be dead or live depending on circumstances? If it is not assuredly to become dead, that is, it may remain live, then why would you want to always call it delayed dead?