Sadly, yes. NEF/H&R, TC, and CVA are among the only ones at this time that offer barrels that swap out quickly. Rossi has promised the program for years now, with nothing to show as of yet. The question of frame strength comes up too, with a frame being able to handle the 243, being a very high pressure round, and at the same time keeping it at a low cost 22LR receiver. Of course they offer the 243 and other high pressure calibers, but I am sure their centerfire rifles have a lot stronger action than the rimfire and shotgun models. Perhaps this is one reason it has complicated things for Rossi. Who's to say.
-Aaron