Speaker specifications & measurements are, relatively speaking, not very helpful.
no more useless than specs on other gear ... but the two to pay close attention to for speakers are:
-3db freq point for bass extension... (of course the room matters, and bass reinforcement from the room) but it is important to know how deep the speaker goes - critical to decide if subs are needed
impedance plot ... quoted ’nominal’ impedance is bull kaka... you need to see the minimum impedance and at what frequency with what phase angle, critical to match proper amplifier to speaker and avoid those amps that would not suffice