None of that matters, really, so long as the modular reactor remains small enough to have fully passive protections and no need for large containment structures. That is the real value of small modular reactors.

The linked article doesn't say if any of these properties are affected by the change, so I have no way of assessing it.

You may be confusing NuScale with someone else.

NuScale got an approval for an SMR that produces 50 MW of electricity (see [1], published by NRC in the Federal Register)

  > The NuScale reactor building is designed to hold up to 12 power modules. Each power module has a rated thermal output of 160 megawatt thermal (MWt) and electrical output of 50 megawatt electric (MWe), yielding a total capacity of 600 MWe for 12 power modules

NuScale has also applied for another approval, for a slightly larger design for an SMR that generates 77 MW of electricity. The review in underway [2]. They don't have any other reactor in the pipeline. 77 MW is more than the already approved 50 MW, but it is nowhere near what a full-size nuclear reactor produces.

[1] https://www.federalregister.gov/documents/2023/01/19/2023-00...

[2] https://www.nrc.gov/reactors/new-reactors/smr/licensing-acti...