best possible footage are shown on jang/GEO... that was the best time of dharna, where geo is stating miles long crowd.... one can easily see that was not even 200 meter long.
not sure how do they count 70000. it is not even 8000-10000 people.
i wish one can share any pictures or videos of the crowd to prove it is a big crowd,
below is a picture of PTI crowd from lahore.. it was from minar-e-pakistan, grounds are much wider, longer, congested and picture is taken from much more height than jang/geo