I think it’s better not to show Luke until right before the ship goes to hyperspace, that way you create a mysterious build up 😉
Hmm, it’s an interesting idea. I might play around with it.
My reason for showing him throughout is without the Holdo scenes there’s still some missing context and I don’t know how easily a viewer would connect the dots if I only show Luke at the end. Also, earlier in the movie when Luke saves Leia from space we see a similar scene of him meditating events across space like that so I don’t feel there is a mystery to preserve now. I want the viewer to physically see Luke displaying his immense power.