I'd be concerned that some of the increased turnout aren't real voters...
Here is the Electoral Fraud Review report from the Electoral Commission in 2014. Mawrey seems to strongly disagree with the findings of the report.
http://www.electoralcommission.org.uk/__data/assets/pdf_file...
It also quite explicitly states that limiting postal votes would reduce the risk of voter fraud (p34) and acknowledges some evidence of systematic voter fraud in some regions of the UK exists.
The information booklet that comes with it has been great for kickstarting investigation into the candidates and their policies, and the various other proposals that are up for the vote (booklet has both for and against arguments from different interest groups) so that she's been able to be a lot more informed as she prepares to vote.
(1) Candidate statements from candidates (there are requirements for being allowed to submit a statement), and (2) Pro/con statements from the official proponents and registered opponents of ballot measures (identifying the sources for both) as well as financial estimates for ballot measures (for statewide measures, these are prepared by the state Legislative Analysts Office.)
I am not saying people don't already vote while uninformed - but you may be making matters worse. I am also not saying people that vote only when it's super-easy are necessarily of this kind or even have more uninformed voters than in general - maybe yes, maybe not. But I think it is a reasonable hypothesis which would be nice to check before investing money in effort in something that very well may make matters worse, not better.
Honestly, I'm waited to see the outcome of Oregon's automatic voter registration efforts on turnout. My guess is that Oregon will continue to lead the way with high turnout. I could be wrong, of course, but there's nothing that suggests that making voting easier would decrease turnout.