The "real" ones I have seen are, but there are probably makers that use blades that are just made from flat stock, ground with no taper above the grind line, and call it a Tommi because thats a buzzword now just like the term puukko.
Knives are made to Western standards and expectations now because thats where the money is. Jarvenpaa started the move in the early 20th century when he started putting fullers on blades to sell more knives to Americans because Americans expected knives to have one. Then came the blades with a ricasso, and without a rhombic grind.
Marttiini up until about 20 years ago still made good blades. Their Lappinleuku had a full height more or less flat grind that was convexed at the edge. When "bushcraft" as started by people like Ray Mears came along, heavily promoting the scandi grind knife made by Alan Wood, the good grinds went away and were replaced by modern grinds that people expected on an outdoors knife, ie if it didn't have a scandi grind it was not going to sell. So, if you want an old school traditional blade, unless you are willing to put out some large cash for a hand made knife, or can find something on the secondary market......
I mostly stick with the older stuff, its just better.....