Today I questioned the claim that "SR is way easier and more beautiful to understand with tensors". I think that knowing about vector spaces, their duals and bilinear forms (i.e. bilinear functions) is enough to formulate the theory and I was genuinely curious to know whether some parts of the theory can really be formulated more conveniently using tensors. The question was immediately closed.
While I thought the close reason as opinion-based was reasonably obvious, I've now left a comment making it explicit:
Whether one formulation of a theory is "easier" or "more beautiful" than another is a matter of subjective opinion, not an objective question about physics.