The reason is because this definition mentions the notion of preferred outcome. Logic and Math and computer science do not deal with "preferred outcomes" these fields are all just axioms and the consequences resulting from said axioms preferred or not.
Pedantry aside, nobody considers a "mathematician" to be a "scientist" when using the terms as they are commonly used in English. This is a total inconsistency.
I’m using Peirce’s definition of the normative sciences[1]. As is not uncommon in English, the same words or phrases can denote different concepts and the wiki link you shared is a case in point.
Philosophy is under mathematics which is not under logic? Philosophy is like literature it is entirely a separate category and logic isn't even mentioned in his arbitrary grouping.
Beauty and ethics are subjective. Logic is not.
Either way following this definition of "normative science" neither logic nor computer science nor math goes under it: https://en.wikipedia.org/wiki/Normative_science
The reason is because this definition mentions the notion of preferred outcome. Logic and Math and computer science do not deal with "preferred outcomes" these fields are all just axioms and the consequences resulting from said axioms preferred or not.
Pedantry aside, nobody considers a "mathematician" to be a "scientist" when using the terms as they are commonly used in English. This is a total inconsistency.