If I understand you correctly, the issue is that the Swedish government used jargon masquerading as a common word, and as a result people didn't understand the meaning. That's another example of jargon being a problem!
Yeah. The deeper problem is that the government needs more precision than common words offer.
Just as programmers invented programming languages to unambiguously express an idea, the legal system uses legal jargon to unambiguously express an idea. Getting rid of jargon means you need to express specific meanings some other way. The Swedish government chose overloading specific meanings to ambiguous words, which is really strictly worse than legal jargon.
