This was decided several years ago -- prior to my joining Wikitree and taking on the leadership of the EuroAristo project. And many discussions have ensued since that time. The bottom line is that, after the decision was made, volunteers (which we all are) took on the enormous task of standardizing the LNAB field. This helped prevent duplicate profiles. There still are many that need correcting. Meanwhile, there continue to be people who bring this up as they find Wikitree and decide to get involved. And some of us take the time to explain the thinking behind it. In which case, we request "Please don't shoot the messenger..." When it comes to the nobles and aristocrats, we don't consider the LNAB field to actually be the person's name. Rather, it is more like the field in the old library card catalog where we looked for a book by title or author. Rather than looking in the 'V' file for von Habsburg, we look in the 'H' file for Habsburg. We then use the CLN field for the person's actual name.
No one wants the task of changing several tens of thousands of profile LNABS to go with a different standard. As mentioned, with the advent of location-specific projects, they have set their own standards for their project profiles. Wikitree certainly has limitations with the fields. And while we may not be crazy about things, we agree, if we want to participate in Wikitree, to work within the guidelines set by the projects.
I'm not sure what you mean by 'series of bad decisions.' Since this G2G post is to try and determine what LNAB to use for the profiles mentioned, I would ask that you please begin a new post if you want to discuss your last comment.