Flaps 25 in Santa Anna?

No way.... That's nuts. (in my opinion).

Does he need more practice?

How about if the norm that he was used to was flaps 30 and he did a flaps 25 instead and it changed his sight picture. It probably changed his reference points for touchdown hence, he floated. floating can be avoided by using a consistent technique that results in a consistent sight picture.

Sight picture is important. deck angle is important. perceived touchdown point is important. difference between flaps 25 and flaps 30 may be insignificant in a 10,000 foot runway. You'll find the concrete eventually. But we operate into too many weird places. I think 30 is better than 25 unless it's gusty. 25 in gusty winds makes sense to me.