(2) the ontological status of objects that, in principle, could never be observed (directly or indirectly)
I took shminux as trying to duck the first debate (by adopting physical pragmatism), but I think most answers to the first question do not necessarily imply particular answers to the second question.
I think you are conflating two related, but distinct questions. Physical realism faces challenges from:
(1) the sociological analysis represented by works like Structure of Scientific Revolution
(2) the ontological status of objects that, in principle, could never be observed (directly or indirectly)
I took shminux as trying to duck the first debate (by adopting physical pragmatism), but I think most answers to the first question do not necessarily imply particular answers to the second question.
I am almost certain I am saying a different thing to what you think.