I see a different problem: the scope of Unicode has crept outside the scope of its designers' expertise. Next you know, we'll have a code point for the symbol "arctanh". (Moreover, sin through arccosh will be contiguous, erf will be placed where you'd expect arctanh, and arctanh will sit between blackboard bold B and D, because C is listed a trillion code points earlier as "Variant Complex Number Sign", between "Engineering Right Angle Bracket" and "Computer Programming Left Parenthesis".)

Encoding the technical and mathematical symbols in two bytes is necessarily kludgy. There are International Standard kludges that everyone is supposed to use, but not everyone does. My solution would be for Unicode to stick to human languages.