As I read this thread, I started to think I was confused so I went back to read the fine print. It took a few looks but I think it is all as I thought it was before I started looking...
I'm interested in hunting wmu 82a, which has an open season. According to the current regs document, the numbers for the 2013 "Antlerless Deer Validation Tag Draw Results for Regular Season Tags" had a quota of 6,100, 5,861 requested and 100% filled. These are good during the open season, which in 82A is 6 days of anything goes (rifle, &tc) and another 6 days of bows and muzzle loaders (and a lot of other time for bows as well). To quote:
Hunters who receive a validation tag in
the draw are permitted to harvest their choice of EITHER
an antlerless deer in the WMU specified on the tag OR
an antlered deer anywhere in the province during the open
season – with the exception of during a controlled hunt.
This all seems to match up with how I understood it: if you received an antlerless validation tag in the draw you could take an antlerless deer during the open season (rifle or muzzle loader).
Comments in this thread about bows-only made me double-check the Bow Hunting Season section, where it first says, "If you want to take an antlerless deer during bow season you need an antlerless deer validation tag." Makes sense. Then comes the part that lost me:
Do not apply for an antlerless deer validation tag in a WMU
with a controlled hunt unless you plan to hunt with a
bow during the bows-only season. You must apply to the
controlled hunt draw if you wish to hunt with a permitted
firearm other than a bow during the controlled season.
So it seems this misleading paragraph is just saying, "If your WMU is a controlled hunt area (no open season), there is a bows-only antlerless draw. Enter that if you intent to hunt antlerless with a bow." In areas with no open season, the regular open season antlerless draw doesn't apply. You draw for the controlled hunt, and that is good for antlerless (but check p70 for special rules).
In the end it is simple, but I found the section under bows confusing.