I think similar what other people writes, the right view on ariyas should be understood according the eradicated fetters. This sound logical because while a fetter is not eradicated, there is attachment and also an space for wrong ideas, errors, etcetera. This is how ignorance works.
The lists of wrong and right views are many inside the sources, and sometimes contains things related with other realms and things which are impossible to check for most ariyas, except arhants. As far I understand, the point is that after stream.entry the certainty in the Buddha teaching is established, and then the knowledge and faith are joined.
This makes impossible to believe a deviate thing despite the doubts and errors exists. This wouldn’t be properly a “wrong view” while it doesn’t have the potentiality to lose the Path. This would be the main point despite being a subjective issue: because for any person, a wrong idea could become a wrong view able to lose the Path while for other person no. However, difference in the case of ariyas is this possibility doesn’t exists.
Doubts and errors are part of the Path until arhanthood. We can check many conversations inside the Suttas between arhants and ariyas and how many times appears the doubts and also answers like “Don’t say that, my friend”, showing they have doubts and wrong ideas in mind. In example:
"Then Ven. Maha Kotthita went to Ven. Sariputta and, on arrival, exchanged courteous greetings with him. After an exchange of friendly greetings & courtesies, he sat to one side. As he was sitting there, he said to Ven. Sariputta, “With the remainderless stopping & fading of the six contact-media [vision, hearing, smell, taste, touch, & intellection] is it the case that there is anything else?”
[Sariputta:] “Don’t say that, my friend.”
[Maha Kotthita:] “With the remainderless stopping & fading of the six contact-media, is it the case that there is not anything else?”
[Sariputta:] “Don’t say that, my friend.”
[Maha Kotthita:] “…is it the case that there both is & is not anything else?”
[Sariputta:] “Don’t say that, my friend.”
AN 4.174
acquisiton of Right View works like a potentiality to discern the Path, working more in this sense:
"And how is right view the forerunner? One discerns wrong view as wrong view, and right view as right view. This is one’s right view.
DN.55
As you writes, it is frequent seeing people who believe ariyas should be like a machine of knowledge, and whatever issue they could ignore on Dhama or they could think in another way, it would be a proof they are not ariyas. This idea is simplistic as we check inside the sources.