“I am not going to downplay the profound impact the beatific vision must have on the souls in heaven. I think anyone capable of seeing God is capable of hearing the prayers of millions.”
I don’t, since I know it is impossible for the human soul to be omnipresent or omniscient, and I stand firmly on the fact the Bible is filled with prayers directed to God only.
In regard to your second point:
1 Timothy 2
I urge, then, first of all, that petitions, prayers, intercession and thanksgiving be made for ALL PEOPLE— 2 for kings and all those in authority, that we may live peaceful and quiet lives in all godliness and holiness. 3 This is good, and pleases God our Savior.
In regard to your first point:
Catholics believe that a soul in Heaven is different than it was on earth.