Are you a speaker engineer for a speaker company for the past 30 years and you think the RBH chief speaker engineer should have used different capacitors for this speaker since they will last longer and provide better measurements?
Yes I am a speaker designer.
If you don't know why electrolytic capacitors shouldn't be used than you don't know anything about audio.
Electrolytic capacitors shouldn't be used in signal paths in audio as they produce more distortion.
They should only used for power supply filtering purposes.
BTW electrolytic capacitors work in circuits as long as they have polarizing DC on them.
Without DC they have short llifespan.
Before answering any post,
First LEARN! LEARN! LEARN!