Any RosaLuma mains feel like this might change how you play at all?
I was thinking about it, and I think this may cause me to make one slight adjustment. When I play RosaLuma, my natural tendency is to hug the edge of the stage, to make use of Luma's spacing capabilities. The problem with this though is that against certain characters (for example, against Shulk's humungous sword and Dedede's humungous hammer) Luma gets knocked off the stage very easily, even just by shielding and absorbing their attacks.
I never really considered it much of a problem because Luma respawns so quickly anyway... but now that the timer has been increased to 13 seconds (closer to 16 seconds taking into account Luma's tumbling animation), I feel like I need to be more protective of Luma and preventing her from getting knocked off the stage. And in order to do so, I feel like I need to be more proactive about fighting in the middle of the stage. That's not to say that I can't still using Luma's spacing ability and all of Rosalina's defensive tools... It just requires an adjustment in my mindset that against certain characters. It won't change how I approach my opponent, but when I'm on the defense, I'll try to avoid hugging the edge of the stage.