this triangle would be broken out at D, ur right about abc relation, fibs don't fit...
the main trend will always be up, since we do 5 steps forward and 3 back, here we are definately in a correction on bigger pic from ath, if you take start of parabolic jump in 2015 to ath, 786 fib is around 4.3k - 4.5k...
also not sure if B is traingle, that this fib relation a to c still expected to be normal...

w2 from ath could very well be a deep one, as often the deep wave 2 is like the end of the world...