After trying out my first tempered glass screen protector on my Moto X, and finding that MIME doesn't make one for the Nexus 7 2013, I emailed them. This is the response I got:
Thanks for reaching out to us about this, and thank you for your support! At the moment we offer glass protector for Apple tablets since our users showed a lot of support for glass protection for these devices. We are currently gauging the demand for Nexus 7 glass protectors, and if we receive enough requests for glass for this device, we will definitely make it happen
So, if you guys want to try and make this happen I suggest you email them. I also figured on creating a poll here that I can show them so they can see how much interest there is in their product. Thanks.