Certainty true. Well high impressions somewhere between 10000 with a 8% CTR would yield 800 views. A video with 5000 impression and a 15% CTR would yield 750 views. The CTR is pretty important if you ask me.
I don't believe social blade is that accurate at most.. it may lag stats about 3-4 days behind and get you confused on a targeted audience. I still check from time to time, because it's interesting to see future projections.