There's nothing wrong with seeing where K. Miller/Robertson/Reunanen/Hajek/Kravstov/Barron/Gettinger and even someone like a Justin Richards are in terms of their development.
Maybe that's the plan. Tarmo had a super camp last year. Some of these "older" prospects like Gettinger and Hajek it's time to find out about and either let them learn their craft at the NHL level, or package them in deals for improvements or other prospects that need a change of scenery.
Rangers have brought guys like Frolov, Prospal, and Fedotenko in very late in the summer.
Some guys will get invites or a contract late in the game.
Remember as
@Edge said right now playing in the NorthEast where covid is bad is not desirable.
Plus look at someone like Jack Johnson. He was desperate to get a contract. $1.1 million for an athlete in NY after agent fees and taxes isn't that great. Some Wall Street people make more than that with their base salary.