Again, who doesn't have this access?

There are communities in northern Ontario that are only accessibly by airplane ~6 months of the year, and those 6 months also have very low amounts of sunlight. They're not quite north enough to be completely dark all day, but they only get a few hours of useable light per day in the winter.

This means that a) solar is less effective in the winter, and b) if there is damage to a wind turbine blade in the winter, they may not be able to get a replacement until spring.

Remote communities don't have the kind of energy demand that nuclear power fulfills

Each reactor cell produces about 1MW, which is about enough to power a small town of about 1,000 people. They can also be air-lifted meaning if it needs to be replaced during the winter, that is still possible.