B&W matrix 801 s2 still a relavant speaker.

They're definitely classics. I think it's the biggest selling high end speaker of all time? Whether they're relevant is entirely up to you.

Yes it is.

I just sold a pair for over $1500- and the guy drove over 200 miles to get them, so at least one other person finds them relevant.
One thing is certain, if you want to get the best out of them be prepared to run powerful amps into them and get them on good stands.

I own a pair of 1959 JBL C36s with the 030 speaker and cossover set in it. They belonged to my father and they will always be relevant. Even after the Japanese passion for them dies down and dissapears. I hope my son keeps them the way I have.

Don't confuse marketing with design competence. If it's good, it's always going to be just that no matter what it is.