Ben Reilly did return; you just didn't like the way it was handled -- which is fine.
I know sales were never great, but the series lasted for twenty-five issues, which doesn't seem like a spectacular failure to me.
Ben's changes made sense due to the trauma he suffered. Again, you might not have liked that choice for him, but I saw "the real Ben" in these stories. I also took into account that, after twenty years and with a new writer, any character would feel somewhat different. But just as Fraction's Hawkeye is still the same character, PAD's Ben Reilly is still the same character.
Give me a character who changes in current stories over a character stuck in amber any day.
-Pav, whose memory of Ben hasn't been tarnished in the slightest...