We're talking two different things here. Halla wasn't stated as unusual among people for not having Training Items, she was unusual among people of her level of prowess. Which is to say warband level, not random warrior level. The two are very different things. One can certainly lead to the other, but generally, when a Norseman embarks on a life of violence, they are not already a warband member. The warbands recruit you if you do well at that...exceptions are made for the well-trained kids of warband members, as we saw with Hal, but the default way to become a professional warrior doesn't involve having that stuff to start with, it involves seeking out battle and acquitting yourself well, and then deciding to keep doing that (and then maybe joining a warband).
Training aids and lots of sparring partners are definitely not standard, you're right, but they're not standard for most Norseman who go out to be professional warriors and raiders either, that's 'warband only' stuff for the most part.
The thing is, all that is true of our Huskarls as well. Kurt is not doing vastly more hours of work on the farm than Abjorn or Vagn (indeed, both of them are providing at least as many Work Dice as he is, and not reducing them by working less hours). Like, yes, we own the land, but we're still definitely working on it ourselves for the most part (or working in the smithy, or on seidr...the other stuff we use Work Dice for). Halla herself also does some weird experimentation, but given the Super Magical tools (and weapons and armor in many cases) she's given everyone people seem unlikely to complain about her weirdness, and the same does not apply to anyone else. There's just not a sharp divide where our huskarls have vastly more free time than he does or Work Dice would function quite differently. They might have a bit more, but it's not a huge sea change that would keep him from, say, joining the sparring if he wanted.