Wikipedia seems to have too many powerful people who are allowed to carry out their own petty grudges. I’ve seen whole rafts of quality music pages deleted over there because in one person’s eye they didn’t like the music.
If anything is spam it is linking to the Discogs shop. They might as well add Amazon links
At least now the MB links exist thanks to Wikidata, even if they are well hidden on the page.
To be fair this really was a long time ago, and I’d be happy to learn that things have changed. But for me this experience really discouraged me from contributing to Wikipedia. And the recent MB pages deletion spree did its part to convince me things are still the same.