Hmmm.... This looks interesting, but I'm not sure they really know what they're talking about.
"Surface hardness 8-9H, three times stronger than regular PET film".
Firstly, what hardness scale are they using? 8 or 9 is a very low number for hardness, but maybe it's Rockwell C they're using.
Secondly, of course glass has a higher hardness value (on whatever scale) than PET. That's the advantage to PET - it's flexible. Flexible means soft. Remember when soda bottles were made of nice, hard glass. What happened when you dropped one on a hard floor? Now think about what happens when you drop a modern soda bottle made of PET onto the same floor.
Next, hardness does not equate to strength. See the soda bottle example above. And do they mean impact strength, tensile strength, what?
The page has typos too; "shard objects such as knives", "when removed fro re-use". I'd say it was stuff that was lost in the translation, but the company address is given as CA, so I have to conclude it's just lack of attention to detail.
However, even given the BS marketing-speak and sloppy web page, the concept of an oleophobic extra glass layer seems appealing. I might have to take of my PowerSupport HD film and give it a try.