You're right, because it is misleading as the story goes on to say this phenomena scared the pants off of people in 'ancient times' meaning natural pollution has been around forever.
Did people wear pants during ancient times?
I wonder if this statement is true from personal observation. I suppose he was around during an total lunar eclipse over 1000 years ago, jeez.
Your post #2..."Did people wear pants during ancient times?"
Yes, they did!
Ancient times going back to the time of Moses and the Hebrew Tabernacle in the desert...The Tent Of Meeting/The Miskan.
The Lord G-D commanded Moses to instruct the Kohenim: The High Priest Aaron and the Levites who served in The Tabernacle along with those who served under them to wear special undergarments.
Read: Leviticus 16:4, NIV Study Bible...
"He is to put on the sacred linen tunic, with linen undergarments next to his body; he is to tie the linen sash around him and put on the linen turban. These are sacred garments; so he must bathe himself with water before he puts them on".
The Israel Museum in Jerusalem has done a great job in replicating most of the Priestly garments, they were on display showing all of the garments including the "sacred undergarments".
The Temple Mount Faithful organization also has a very beautiful display of these garments in Jerusalem.
I don't wear pants now, if that helps.