I disagree.
I think for at least the difference in distance, they would have had some kind of charts, enough to chart a moderately safe passage, and there would have been at least some Federation ships for the remainder of the trip from that point on. Then factor in that after decades, the Federation could have made advancements in warp technology, and been in radio contact with them much sooner than the full 70,000LY to help out in some way.
Considering Voyager was officially declared lost, had they gone for the wormhole, they would have been almost 100% guaranteed on their own until they hit the wormhole, because nobody knew they were lost in the DQ making the trip home.
And Voyager seemed to have very little info on the wormhole or probably the Gamma Quadrant. It would have been a gamble for them to head in the entirely wrong direction on the assumption this one wormhole was still going to be there in 60 years, since it was the only stable wormhole that they'd ever known to exist, and they didn't know anything about it. Had that not panned out, they just screwed themselves over by several decades by putting all of their eggs in one basket.
And either direction could have been Borg country. The Borg apparently had pretty big space in the DQ, big enough that they couldn't travel around it once they hit it on their direct AQ path, and as far as I recall, Voyager wouldn't have known where Borg space was exactly in advance anyway, since none of them had been there, so they couldn't have made an educated guess and let that influence their choice of travel from the start.
60K entirely alone in completely uncharted space vs 70K with charted space and potential help. The more I think about it, the more it's a no brainer for the AQ as far as I'm concerned.