I think hypershunts are placeholders for something that will be more useful later on when the storyline is finished.
Meanwhile they are just there to get something to entertain yourself in the endgame, Taps were added as a tease and an excuse to fight the tesseracts, and you can interact with them and do that so that they aren't a disappointment I believe.
Later when we get Starsector 2: The Domain strikes back, taps will be used to open up the gate system again, and the Domain will try to take over your space opium farm and they will learn the error of their ways. Tell everything about your "Rightful claim" to my Hephaestus cannons you bunch of sorry little ***! (badass pose with cigar in mouth). Yeah, it's gonna be a bit Duke Nukem like that, the guys said that more space badassery was needed in order to get the attention of the mainstream payerbase.
Portraits will have big jugs (even inside spacesuits), or be 10 year old boys, so that the east asian market can be lulled over.
AI cores, spaceships, and even colonies will also be given ample cleavage, since apparently that's an industry standard that needs to be met.