I noticed the same thing and it gave me pause. Then I saw that the site lists the regular Rescue Flash for a couple dollars more, so I think it will be OK. I ordered a few Minis and will post when they arrive.
The mirrors arrived today from Going Gear and they are indeed the minis. I have one of the old AMK minis and these new ones are the same dimensions. They have an orange backing with the new 'SOL' logo instead of yellow backing with the AMK logo. My old one says 'made in korea' and the new ones say 'make in China'. The retroreflective mesh looks the same but I will test them to be sure.
You guys should snap some of these up for your mini-kits.