Who is the Bhashyakara who pretended to criticize Pancharatra?
That Bashyakara is not criticizing the Pancharatra agamas. The Bhashyakara is Shabara, and he is commenting on the Purva Mimamsa sutra of Jaimini that says:
When there is a conflict (between Veda and Smriti) the Smriti should
be disregarded; because it is only when there is no such conflict ...