Can we really call it transparent aluminum? I mean, then its also solid oxygen! at room temperature!

Red Transparent Aluminium! aka Ruby
Blue Transparent Aluminium! aka Sapphire

AMAGAD. WHAT IS THIS ON MY KITCHEN TABLE? TRANSPARENT SODIUM!!?!??!?!?!1

So, you think rust isn't iron?

Yes, this is aluminum, just as ruby and sapphires are states of aluminum (technically corundum, the technical term for aluminum oxide) but because this is not naturally occurring they were smart to make the chemical composition it's name, AlON (aluminum, oxygen, nitrogen).
You make a new useful compound, you can name it whatever you like. ;-)

I just had my windows redone with transparent sand.. Glas is so 2001....

And no, it is not transparent aluminium, it’s a transparent aluminium compound...

Aint nothing I like more on a hot day than a coool glass of liquid hydrogen.

AlON is fine. I guess my point was that transparent compounds of metals aren't exactly uncommon, and neither is compounds having quite different characteristics to the elements from which they are composed. So it just seems silly to act like they've invented some amazing transparent metal.

Do you call rust iron? "Look at this chassis, its COVERED in iron! It's practically all iron all the way through!" :P

They did invent a new, amazing, transparent metallic compounded never seen before with properties that outperform natural and synthetic aluminum oxides, which until now were not fully transparent. Did you even watch the video?

As the inventors, they get to name it. Transparent aluminum is a good, descriptive name, imo. You can disagree, but if you insist it's not aluminum you'll be contradicted.

Do I call rust "iron" in normal conversation with non scientists, no.
In chemistry class, yes, it's oxidized iron, so "iron" is right.
Would I be silly enough to claim it's NOT iron, absolutely not.