I see a sign. What's the issue?
I did a little exploring, and the issue seems to be that the highways are still in an interim configuration.
Before the project, northbound NB 11 used to curve to the east and offer a straight shot to the Confederation Bridge without having to make any exits or turns. Google Maps have already been updated to the new (incomplete) configuration, but if you use Street View, the images from the old configuration show up:
https://www.google.com/maps/@46.2090443,-64.5742316,15zBut now, because the ramp from NB 11 to NB 15 is closed, you can't go east directly onto NB 15; instead, you have to go north on the
new NB 11 to the next exit, then head east to the roundabout (where the above sign is posted), head south on NB 132 toward Exit 0 (!), and then take the cloverleaf onto old NB 15.
I made (what I think is) a rough sketch of the current configuration:

So, it seems that the signs aren't necessarily the problem, although listing "PEI" as the third "control city" probably doesn't help.
Perhaps a local can tell me that I'm full of it, though.