How is w=add(u, v) more explicit than w=u+v? Because operators "should not be function calls"? That would make zig unusable on soft float/soft div architectur

How is w=add(u, v) more explicit than w=u+v? Because operators "should not be function calls"? That would make zig unusable on soft float/soft div architectures, or would have to get rid of / for division and operators for floats. But I would also assume add() is inlined and not be a function call in a sane language/compiler, so the explicitness even falls apart from the start.