If it were to make him not have an abortion-centered campaign, yes.
Every time they turned down the war on women ads, their poll numbers dropped.
I know that the udall campaign said that, but the fact is that you have to campaign on more than one issue in today's environment. Had Udall campaigned not only on abortion, but also looked to other issues from time to time, he would have gotten the Denver post endorsement and co/national democrats wouldn't have went around heckling him all the time. Instead, Udall campaigned on abortion essentially 100% of the time, which is why he lost.