Can confirm this works! I transferred my last two weeks of power-downs in my wallet on steempeak to @graphene-swap which sent STEEM to hive-engine as STEEM-SWAP, then sold that on hive-engine and finally converted HIVE-SWAP to HIVE by withdrawing from hive-engine. Bonus final step, powered up HIVE :-)
I don't think enough people know about this. A lot of the talk this week has been about centralised exchanges pausing STEEM deposits. Well you can easily bypass that with this method.