Sure, but it doesn't seem like they are rejecting the app because of its functionality or quality, but the price point. Software that serves a niche isn't going to get the mass downloads required to fund the development a low price point per sale requires. There is a use case for apps costing more than $10. The Samsung store allows for in-app subscriptions, at 2 bucks a month the app is going to cost the user more than $10 over the span of a year, heck even over the course of 6 months.

But yeah, if Samsung doesn't like it, I say screw 'em and just put it on the Play Store instead.