Does this much apple cider vinegar not make it too …

Comment on Slow-Cooker Maple Bourbon Pulled Pork by jules.

Does this much apple cider vinegar not make it too tangy? Also, should I even add olive oil since I will be using a port butt?
Thanks

Malcolm Bedell is co-author of the critically acclaimed "Eating in Maine: At Home, On the Town, and On the Road," as well as the junk food blog "Spork & Barrel," and "Brocavore," a blog about food trucks and street food culture. His contributions include Serious Eats, Down East, Eat Rockland, L.A. Weekly, The Guardian, and The Huffington Post and his food truck, "'Wich, Please," was named "Hottest Restaurant in Maine" for 2015 by Eater. Finally, he finds it very silly to be trying to write this in the third person.