As long as you have the black connect piece squeezed as you pull out the brake booster line you'll be fine. I know it seem like putting force on it might cause it the snap but that line is pretty tough and can take some bending. Just pull and wiggle it out, it'll come out before you think its about to snap into pieces.

Also the connect tab on the blower does come off after you've removed the booster line. If your removing the blower, id pull tha tab off as it can be broken while removing or putting the blower back on as ive broken one. Thankfully needswings had a spare one off a broken blower he didnt need that he sold to me as you cannot replace that part.