Probably. Laying of hands is a thing with many Christian denominations. I’ve done it plenty of times. I mean, not with Trump of course.
But if a group of people wanted to pray over a willing participant who was in the room, it would be quite normal to do this.
I’d even venture to say that Trump is not the first POTUS to be prayed over in this way. This is perhaps the least weird thing about Trump I’ve seen posted.