Please study the facts:
Grant Gallicho - https://www.commonwealmagazine.org/elizabeth-johnson-responds-committee-doctrine (beautiful take down of the officious Weinandy)

Rev. Anthony Ruff - http://www.praytellblog.com/index.php/2011/04/20/sr-elizabeth-johnson-cardinal-wuerl-and-fr-raymond-brown/

And Weinandy's story - really, so he prayed twice in St. Peter's.  So, because it is St. Peter's, does that make his prayer more powerful, significant?  and he ran into an acquaintance and that suddenly becomes a *sign from God*.  What is this, an exercise in charismatic Catholicism?  What's next?  Geez, what if Francis said that he prayed at St. Peter's three times and also had a sign from God - so, which God is correct - Weinandy's or Francis?

Me thinks his four complaints are sour grapes, sounding like a three year old stomping his feet and having a temper tantrum.  Suggest private penance and isolation in an abbey for the rest of his life so he can clear up his own confusion.