The reenactment is the highlight show of the park. I can tell you there are chairs, folding chairs for this show when we went there. I would say there are at least 100 chairs on each side and the middle is an aisle. At least this is how it was for us about three years back and we went once about 15 years ago, too. Maybe, the u tube video blocked the view of the chairs from others who do stand around them. These chairs fill up early and you need to be there early for one. Maybe, they did away with the chairs, now. I'm not sure they would allow a scooter in the front of this show; this is where it's better to call to find out those exact details. With people standing it's fruitless to be in the back with a scooter. Also, I think I remember there are some areas with sand to replicate a desert which is where there's some issue with a scooter. There are shows in this area; so, you would have to stay at an edge and you may not see much again. Another area which is like a room is very difficult from what I can remember to get a scooter in and out of; it's tight quarters and there are other people in there.
I wish you the best, but I'm sure who you will call at Holy Land will be very delicate about this circumstance. I have an idea they will say everything is accessible, but in reality if you can't see the show what good is it. I'll pray for you that this experience works out for you.
I hope I'm wrong and I hope there has been some improvements, but again I say this park is not scooter friendly. The original design of the park did not take scooters into consideration from what I can tell.