I think this is somewhat unfair. Having read Rabbi Weiss' book, I can tell
you that he recounts conversations that he had on this matter with Rav Yosef
Dov Soloveitchik, zt'l, and his understanding of Rav Moshe Feinstein, zt'l.
In the latter case, Rabbi Weiss clarified his views of Rav Moshe with Rabbi
Mordecai Tendler, Rav Moshe's grandson and personal assistant, and reports
the results of Rabbi Tendler's responses to him.
Before appearing to attack him for lack of scholarly stature or consultation
with Gedolim, it would seem appropriate to read the book (to see if perhaps
it does have merit), and to read his account of his consultations with
unquestioned Gedolim. One can, of course, still disagree with him, but on
the basis of what he said and/or did rather than giving the appearance of
not darshaning him lekhaf zekhut.
For what it's worth, I found his use of the Tosefta to clarify the meaning
of Kavod HaTzibbur fascinating, especially as it absolutely nails down the
total impermissibility of giving women aliyot in practice. (And this from
someone like Rabbi Weiss who is sensitive to people's expressed needs, but
not at cost of the least damage to Halakhic integrity.)
Incidentally, there is a Women's Tefillah Group in Teaneck, NJ, where I
live, and it is interesting that virtually no high school or college girls
or women have the slightest interest in it, including the daughters of many
of its strongest enthusiasts. I suspect that this phenomenon appeals to a
very small section of the Orthodox community, and one which does not have
the experience of a thorough Jewish education. Most of those girls and
young women who do not have an interest repeat almost verbatim the
substantive comments and objections that Rav Menken mentioned in the rest of
his message as their basis for non-interest.
Chaim Frazer