The second printed pedal finally broke (I didn't actually notice when it happened). The two pieces still press fit together nicely, so it wasn't a catastrophic failure by any measure.
I took some photos of the part after it happened with the intent to try and understand how it broke and how to make it stronger.
2023-05-16 Update (Really 2021-01 Update)ΒΆ
I've been doing some digging to see when I printed the pedals and found some pictures I took of when I broke the other pedal. I did a little writeup based on the photos and what I remember; however, I still haven't found photos from the original print. Even if I can't find the original print date, the post from January 2021 would date the print to late 2020, which means that the pedal has held up for at least two and a half years.