The shape you describe sounds perfect. You don't want a central leader, you want the middle of the tree to be open for light and air penetration.

Those five scaffolds will branch and feather out. You won't have tiers.

I think what your saying is tree is not tall enough but it will grow up once it plugs in and it needn't be grown as a central leader, although it may still provide you with the opportunity to train an upward groing water sprout into a CL. Eventually cherries generally become open center trees anyway.

Lapins is an extreme upright grower so tree may have been trained to counter that tendency. It's a pretty tough variety to train.

Don't worry at all, you don't need a leader, and you don't want one. The inside-out umbrella shape you're referring to is usually called a "vase" shape, and is very often the desired shape when training cherry trees, especially if the leader is already gone. Keep training the tree this way from year to year. Cut back to outward facing buds, keep the interior clear, and maintain that vase shape.

Thank you! After a little research yes, it does look just about ideal. Hope to keep it that way.