IOS and android devices both have the same basic hardware.
Yeah, I think it's possible to have such decoupling of modules. Model A is only good as a general overview of some patterns and ideas, you can't *directly* draw from it any specific concrete conclusions. To make such a conclusion, you always have to add other reasonings in the process. And Model A cannot determine those additional things on its own. So yeah, goodbye to it in that sense, but that's a well-known thing I would think.
And to get more specific about your post, I don't think any of the general overview Model A provides can determine how the processing structure works in such detail, down to these modules you mention for examples. The model is too lightweight for that, it does not have enough information to explain the workings of the brain down to that detail.