I see no problem. One character arc may be a little puzzling, but perhaps it's supposed to be. But that's not why he brought them to the 24th century. He had solid story arcs planned for the DC Star Trek comics, but they were put on hiatus while Pocket and DC's licenses were renegotiated. TAS had been made off-limits. The Arex move-to-security arc was given to Ensign Fouton (in DC Comics Series II) and had to end abruptly. The planned arc for M'Ress had fizzled when her replacement, M'yra, was ordered out of the comic by the new restrictions. It was John Ordover's idea to add the characters to NF. While you might have decided that that moment in NF was the end for you, many TAS fans rejoiced.