Does measurements really matter?

A speaker needs to sound good that's what home loudspeakers are designed to do but to do so you need basic measurements all transducers and electrical parts used in loudspeakers are carefully designed and measured. So if the designer voices by ear they are still using parts that are all carefully designed and measured even if end results are not. Some designers are so skilled in that aspect that measurements are only used to find defects in assembly. Other companies use a measurement-based design philosophy that takes precedence over voicing. Both are viable after all we are creating devices that are used to play art and art is itself subjective. Loudspeaker design is a lot like cooking some can cook better than others, some can cook well if they carefully follow a recipe and carefully measure all, some can make most any ingredients taste great and can just wing it.