The closest that post admits to anything is "We do agree that we have over-stepped the line of flattery vs plagiarism. Please give us time and we will try and rectify this as soon as we get a chance.".

Everything else is kind of like.... No big deal. Egg in the face. Haha, we'll fix it.

They should have just been more clear, like, "Yes, we pretty much copied your design. We love what you guys came up with. It was wrong of us to blatantly steal your perfectly crafted masterpiece, but we just couldn't help ourselves... We are inferior."