I think this was not about removing multi-dimensional arrays, but rather the plethora of functions that work only on numerical tensors, but have no generic use otherwise.
Maybe the numerical focus was good in the beginning to have some clear differentiator, so it made sense to include all that stuff. But now that we have apps, binary compilation, more need for tooling, I think it becomes clear that being able to run Julia with the least bloat possible is important for the future development of the ecosystem.