Is there a rules as intended vs. rules as written issue with the card Overpower. Until TA, refill face-up was explicitly indicated on cards which were intended to be refilled face-up. In TA, a casual reading of Overpower suggests that it is intended to be refilled face-up, but a technical reading suggests that it should refill face-down. The comprehensive rules indicate that the card is supposed to tell you any special ways to refill a province. Otherwise, it is to be refilled from the top of your Dynasty deck, face-down.
Since Overpower does not indicate that province is to be refilled face-up, it would seem that it should not be refilled face-up. Nothing on the card explicitly changes that aspect of "refilling," as per the rulebook. On a related note, The Passing of Tradition only indicates that the province is to be refilled face-up as reminder text rather than rules text. They appear to be intended as identical action effects, but are written somewhat differently. Every EE refill face-up card prior to TA appears to indicate that the province is refilled face-up in the rules text, as would be expected. Reminder text does indicate rules as Intended. Does the lack of reminder text also indicate rules as intended?
Instructions to "refill" a province, unless otherwise specified, will refill it with a face-down card from the top of the Dynasty deck (see Provinces).
Limited: Target your discarded (not dead) Personality: Put him into one of your provinces, discarding any card currently there.
Limited: Target your discarded Personality: Put him into your province (face-up) discarding the card currently there.