Google is a marketing giant and doesn't make a habit of making flippant decisions. Do I wish that YT Premium had an option to exclude YT Music, yes. Can I guarantee the cost of not bundling it will be recouped by individual YT Premium subscriptions, no. Also, unlike Apple Music and Spotify, Youtube Music also has music from unpublished artists and obscure podcasts from YouTube. Premium also lets me leave off on my phone and continue the video on another device, downloads and smart downloads are a life saver on commutes and journeys, family plan gives access to all these features to 5 people in the family at a marginally increased cost. Also, lest one forget, most other platforms especially ones associated to Movie and TV studios sell tickets to their movies, air it on TV, sell them on Discs and License out their content which is absent as an alternative revenue stream for YouTube afaik.
This complaint about YT Premium isn't about the cost, it's about the fact that without it, the Author cannot tolerate ads on YouTube and now that Google has tackled AdBlockers, the Author can't find a way to not pay while simultaneously enjoy YouTube. The early years of over investment into the dot com and now the startup bubble has lead to a false sense of what can be free and what cannot on the internet. People like the author here can't seem to able to grasp the fact that just because they've been enjoying something in a particular state until now, doesn't mean that now it's the creators'/owners' responsibility to keep it the same regardless of changing dynamics their own survival and profitability be damned.
Additionally, as others have pointed out, it would've been an Apples to Apples comparison if the Author, instead of ranting, had actually engaged in quality journalism and compared all pricing options of all the services and value propositions of each package to see whether their hypothesis held any water. No mention of whether YouTube has any comment on this or of an attempt of extracting one from someone at YouTube. Sad, feckless and lazy journalism.