Another crucial and Fundamental ;-) disagreement we have, that to me is inherent in the one you mention, is the extent and accuracy of "transmission" and recording of those "real experiences with the Divine". Obviously I believe, that the Torah is a word-for-word record of these, with G-d being the actual author of the Torah (with Moshe "merely" as Scribe), and the Bible being accurate as well. You, obviously to me, can NOT accept this POV, considering your inclusive attitudes and synthesism.

This disagreement derives from the fatc that the Torah is explicitly exclusive of these other "religious traditions". [ insert recurring "Judaism is not a religion" reference ;-) ] So if you accept the Torah as an accurate record, and accept the Torah's inclusiveness and applicability to non-Jews (e.g. the Noahide Laws) then there is no room, or even any actual need for any other "religion".