They are not identical.
I searched for the detailed jig settings to replicate an Ellsworth factory grind using the Tormek / Sorby jigs. I concluded that you simply can't.
The Ellsworth is made with a jig like the Wolverine varijig - instuctions on how to make a DIY version are shipped with it. The other systems can be adjusted to make "Irish" grinds but not that specific geometry.
Does it matter ? I very much doubt it. It's just a rabbit hole I fell into once.
If you do bowls and will mostly use gouges, a grinder, cbn wheel and wolverine are a nice system.
A pro edge is probably most versatile for different turning and other tools.
A tormek is better for planes and chisels but too slow for turners.