No they don't
BIG +1 (2-0 M3C, 1-2 NAVI)
NAVI +-0 (2-1 BIG, 1-2 M3C)
M3C -1 (0-2 BIG, 2-1 NAVI)
BIG qualify on h2h map differential if BIG win against BBL. Impossible for NAVI to qualify.
If BIG lose to BBL, M3C qualify because of h2h score against BBL & NAVI = 2-0 and 2-1