My understanding from the limited research that was done following more recent changes is that they have the strongest detrimental impact on access to citizenship by people who came as refugees. I think that includes the financial dimension of it. To the extent refugees are among those who most desperately want, need, and embrace citizenship as soon as possible, we should be mindful of not erecting arbitrary barriers to their ability to access it.
On April 14th, 2016. See this statement in context.