But what does the "Access to photos" permission really do here? It's not like not having that permission would stop Apple from accessing them against your will, as they have access via the OS anyway. And it's clear, that when you open the Apple Photos app, that it will access your photos.
On the other hand, when you open a third party app, it may not have been clear to you that it wants to access your photos, and the company did not have prior access to them.
I still think apps should only be pre-blessed sparingly. For example, the camera app should not have GPS permission by default, as many people probably aren't aware that camera apps use that information.