Sony is very confident in the success of its studios and the Brazilian Rafael Grassetti, former Santa Monica art director on God of War, talked about this in a participation in the Flow Games Podcast. According to him, the company demands “at least” a 90 score on Metacritic from its major studios like Santa Monica and Naughty Dog.
Sony doesn't rush studios on their deadlines
Here's a link to the podcast (in Portuguese)
Within the company, there is a whole division that specifically takes care of this topic. Games need to go through deeper analysis to achieve higher scores, as he explained. Grassetti confirmed that these reviews are important to the studios, that he is against random reviewers being allowed on Metacritic and denied the existence of an “extra” payment based on score performances. In fact, bonuses are geared toward sales figures.
Sony doesn't rush studios on their deadlines
In the same podcast, Grassetti said Sony doesn't rush its studios. The developers themselves are committed to the deadlines and are free to ask for more time to produce the titles.
According to Grassetti, this depends a lot on the game's production phase. For example, in God of War Ragnarok, many contents had to be counted, but not because of pressure from PlayStation, but to meet the pre-established deadlines set by the studio for the release.
Thus, some developers end up, by their own will, staying a few extra hours to ensure that their ideas for the game arrive with the intended quality in the final product and do not run the risk of, if they are not finalized, being left out.
Here's a link to the podcast (in Portuguese)