"It's just a prank bro" would be inexcusable for someone mocking up a screenshot to make it look like someone was sending racist DMs to get them fired, or something on that level. But this is not anything like that, it was a funny comment in a forum where funny comments are made that was taken at face value by a credulous reporter who should've done their job better. It wasn't hateful, offensive or dangerous.
In addition, you've completely altered what the author of the blog post was saying. They're not using the dismissive "It's just a prank bro", they've actually written quite a thoughtful post explaining the context behind the incident. They didn't apologise but they didn't need to.
In addition, you've completely altered what the author of the blog post was saying. They're not using the dismissive "It's just a prank bro", they've actually written quite a thoughtful post explaining the context behind the incident. They didn't apologise but they didn't need to.