It strikes me that it's irrelevant unless you're interested in the ante-post markets.
Arsene Wenger isn't going to tell you who is going to line up now for Arsenal in the Cup Final should they get there.
I'm happy to wait until closer to the day before finding out what's going to run. It doesn't bother me in the least if Mullins chooses not to tell us what is or isn't running.
I think it's great that other trainers are happy to share information but sometimes they change their plans at the last minute, at which point there's no shortage of whingeing about that so they might actually be putting themselves in a no-win situation by releasing information that might change. Nicholls, for example, is getting notorious for changing plans and damaging his reputation as a caring-sharing operator.
Nah, I don't feel I'm watching in the fog. It's no big deal to me. I've no idea what's likely to run in the Gold Cup at this stage and am not bothered about that either, regardless of who trains what. If, though, for example, something comes out and I find myself rating it 180 I wouldn't feel disadvantaged in betting it now at 25/1 for the Gold Cup or Champion Chase just because I don't know what Mullins might run. If it can run to 180 it wouldn't matter to me what took it on come the day. It would have a far better chance than 25/1.