Just tested in game in my steam copy of 7.0 and step 11 came up as normal. It also didn't look like it would let me get past that text to step 12 without doing the research (which is what the code indicates to me as well).
Anyway, I'm really not sure what happened here as I can't find evidence of a bug, though I'd certainly like to find out.
A few questions:
1) What version are you running?
2) Can you reproduce the problem from the start of the tutorial or some savegame from it? If so, please tell me how (and provide the save, if there is one).
Thanks
And welcome to the game and the forums! Sorry you ran into this hiccup.
Edit: just saw your most recent reply. The text you quoted is telling you to unlock it, not build it. I guess it could be a little clearer that it means the SUP tab of the science vessel instead of the command station, but since you were just working with science labs I guess it didn't occur to us in all these years
Anyway, I just put in a change for 7.001 (which will probably be out in a few days, we're still doing the launch of 7.0/VotM right now) :
* Added a clarification to the tutorial text in step 11 of tutorial 2 that you're supposed to unlock the harvester exo-shield from the SUP tab of the Science Lab, not of the Command Station.