Nope, mate and it's a strange thing, when you call the contract you withdraw an amount of ETH based on your holdings, you and only you can do that . Are you sure that you're doing it all right?
Well, I did check out the tutorial again and can't really see where I'm going off track. Just tried the "withdraw all" option after lowering gwei to 5 and gas to 200.000 (=0.12$) and the spectre website basicly said "everything is fine. request sent to the blockchain". Well, the transaction failed because the gas was too low (why?!). Either way, it wanted to transfer "0 ETH" in that failed transaction and now I can't even choose "withdraw all" anymore, so I would have to try to resend each week on its own at a higher gas price. The transaction costs would be much higher than the dividends.

edit:
Ok, so apparently I can't choose my own gwei/gas ratio. Another test with the given ratio worked. Oh man, I wish the "withdraw all" option was back though. Time to contact the support I guess.
edit2:
email is out. will report back.