Great to have them both signed and I don't think it's going to more than a couple years before they're both in the Rangers lineup. These signings show both players are committed.
I think its important to note that European players who were just drafted have to be signed by July 15th in order to be eligible to participate in training camp (assuming the players who were drafted are under contract over seas and are not playing in the KHL.)
TC will be a good experience for both of them regardless of where they play afterwards.