This issue happens for any mob egg I use. I tried this with a Blaze and it did the same thing.
For the screenshots, I used command blocks to switch from creative to adventure mode, and then back to creative mode almost immediately o I can use a command to kill the piglin brutes quickly to end the trial. This is why I'm in creative mode in the screenshots.
I didn't mean to attach images as PDFs lol, my bad
It appears as though it would! Thank you for showing this to me, I hope Mojang decides to fix this in the future. I'm not sure why it's deemed Working as Intended, but hey, I don't work at Mojang, lol.