There's a difference between "making more accessible" and "making accessible".

The latter means that information that was _inaccessible_ was made accessible (ergo: you couldn't access the information before the event).

The former is less constrained: it just means that whatever state of accessibility the information was in, it is now easier to access.

As an example: digitizing a book that is available for free to anyone who goes to Public Library One in Big City makes it more accessible (because I can access it from the other side of the world while eating soup) even though it wasn't _inaccessible_ before.