All reports I've read is that the screen is less reflective then previous glass models. Apple says 75% less reflective.
I have not seen one yet so I'm just going by what others are saying. Your the first to report it is as reflective as previous models.
It is almost certainly reflecting less light, but it's functionally just as reflective.
Look at it this way: It's a new IPS panel. Supposedly it really has at least 24-bit range for expressing values, right? And the old ones had... I dunno, say they were 18-bit values. So they went from being able to express 64 non-dithered values of grey to 256, right?
So. We care about this, because it looks better. But wait! All that new resolution we're talking about? All of that is happening within 1/64 of the available brightness. Which is to say, if you start with an 18-bit display, and go from the very blackest black it has, to the next brightest grey, that next brightest grey is 1/64 of the way to pure white, right? And we want the IPS display because it can show details
more precise than that.
Which is to say: 1/4 as bright is not a very big difference, compared to the scale on which we are talking about seeing light and color.
The display may not reflect as much light, but it's reflecting exactly the same things, just not as brightly. It's like turning the brightness on a display down; it may make it a little harder to read, but it doesn't make the display go away. You can still see with
perfect clarity in the reflections, because they are still perfect reflections, even if they're not as bright. So if you look at a MBPR screen, and behind you there is a medium grey surface with some dark grey text on it, you can read the text as clearly as you could in a mirror. It won't be as
bright as it was on the previous ones, but it's still just about as
noticeable, because your eyes are way, way, more sensitive than they'd need to be to pick out reflections.
If anything, it's effectively
more noticeable, because you are looking at a heck of a lot more pixels with a much broader range of colors. If you take an amount of reflection that was, previously, just barely as much as the smallest difference between greys the MBP could show, it will now be many times larger than the smallest difference between greys the MBP can show...