It does appear to be the same configuration, alright. If you have been using it with good performance and can vouch for it, then that’s good enough for me!
The owner of PreciseBits and I had a conversation about low-price bits, a few years ago. He educated me about the various carbides and costs. His “blanks” cost more than that bit you linked to!
-ShopBot Buddy PRSAlpha CNC