Part of the flaw I see in trying to categorize $SPX option trades as bearish or bullish is this:

09:43 AM (11:43 EST): 15 MAY 2020 CALLS

Fills at $76.90 are categorized as both "BULLISH" and "BEARISH", due to the movement in the bid/ask spread as volume comes in. https://t.co/C5enI0UE6A