Confused and need a clue

Again in January, I stupidly tried to send some BNB to coinbase from Binance.us. I faithfully copied the coinbase handle, verified it twice in the Binance withdrawal fields, and clicked send. You all know what occurred next, the funds by no means arrived and have been now stuck in limbo within the newly minted wallet on the BEP-20 community. I gnashed by tooth, rended my hair, and wept over my loss after which moved on. I also saved the handle in my bscscan.com account to forlornly view the stability once in a while and rub extra salt into my wound.

Fast forward to yesterday once I acquired a notice that the handle had transferred the funds to a different handle. I scratched my head and questioned, how? Don't new addresses created by this sort of mistake usually lose the keys to the enormous key pile within the void and make them inaccessible to all who come after?

Viewing bscscan, the new handle from the unique transaction acquired the funds from a Binance 5 handle. The brand new transaction transferred the funds to a different Binance 5 handle.

Binance denied a restoration request. Binance help claims they haven't any control over addresses reminiscent of these routinely generated lifeless end addreses. I get all of that. But it is simply very odd that instantly, this handle (which didn't exist before my initial withdrawal so far as I can inform) transferred funds out.

Unique withdrawal txid: 0xb8a1c7b7eef5c18fa9e1488daf41c7e9654c7b7f48bce6d061ce71ba8065c232
Improper chain tackle: 0x4c2c46F6473e403209bDF1BAE51972F27127D808

Yesterdays switch txid: 0x504fabee2f7056cc2001118f00786cbe3c96d2cf43bc9a89d0fc208f28dbc474
sent to deal with: 0x5BA434B40Be6cfc7033BF8d4545320Fa609a4268

Did somebody at Binance.us create a backdoor that generates keys to flawed handle withdrawals from fools like me that then permits them to siphon these funds at a later date? It could possibly't be a coinbase thing because they don't (so far as I know) use the BEP-20 network, right?

Any clue to help me perceive the current movement of the BNB would assist me sleep more simply. I'm not so much on the lookout for recovery but understanding extra about the way it's potential to transfer out of a seemingly lifeless finish handle can be nice.

Thanks

Quip