The time in which something sells can be a reason to rule something out, but it should never outweigh the quantity of sales unless there's other compelling evidence that a price is too high/low. That's why I hate using the term "quicksale" as it is a widely misused term, and because different people use it to indicate different kinds of sales.

If someone sold his hat for the first offer they got, they often end up taking less than what they could've gotten.

I'm far more likely inclined to call something a 'quicksale' when it was pure, but sales that happen in very short amount of times - pure or not - often end up being low outliers anyway.

In this case, the beams phantom sale should more or less support this value (I see a mini at 75 below which sounds really low, even for a duped one), and the panama sale looks like a low outlier here (but supportive of the drop). This should be fine.