Looking through these entries, I believe these are contributions made using Coinbase, not by Coinbase. I.e: political donations processed using cryptocurrency, not ones made by the company or its employees.
Just speculating here based on the repeated small dollar amounts.
I doubt it. There are a lot of $5k+ donations, and a $21k donation. The dozens of $2k and $5k donations are mostly to Brian Forde's campaign, famous for his Bitcoin connections[1]. Upon looking at the smallest donations, the majority go to Brian Forde, too.
They're not deceived, it just looks like a display error. If you open up an individual item, many have an "Open Image" button next to them that show the full filing document.
Just speculating here based on the repeated small dollar amounts.