In all those cases he felt a presence it was different at the park, the threat wasn't Axel, but the ball kicked at high speed that was almost hitting him, it's something that happen almost uncosciuosly and Orion still doesn't control it completely.
And when the accident in the ally happen, Orion is still far from controlling something that he possess.
Reamin to seen if this power he posses is something that he already had or it was imbued in him sometime in the past.
The flashbacks that shows Orion looking at himself whiel bleeding, or the other one when he see the kids in the room in his first nightmare, the hints that he will not remember anything after the "nightmares" shows ( to me at least) that Orion is not a normal human ( if he ever was) and this mean he still need to awaken completely