The Wizamets I have which are over a year old also have the same single wrapper and the TM instead of R. My Polsilvers from 2016 have the R but I can't remember if they are double wrapped. I will have to grab a Polsilver after I toss the Nacet blade that I am using now just to double check.Just got 1000 blades not from Wizamet but from SUPERIRIDIUM.COM sent from France. Got them here in Brazil in 2 weeks. No issues at all.
The difference I find is that my older Wizamet from a few years ago have double inner paper (one outer blue printed Wizamet and other inner blank). Now have only one white paper printed in black SUPER IRIDIUM.
And now it has TM instead of R at end of Super Iridium. Put a picture of old batch together.