We are in this mess because of a one-off rule effecting an individual account of steem, ninja mined or not it was a one off solution, so no. No!!! No exception to the power down rules. Prior to steemit being sold, the promise was the next hard fork would be the SMT stand alone Hard Fork, and that is what should be done. We have seen in the past how changing to many parts of the code has not worked out. When you power steem up I believe all the wallets tell you there is a 13 week power down, if they did not read or did not understand it to bad.