I agree mostly with the comment you are responding to, and believe you are missing the critical point of their comment. They were a bit loose with language "you cand as you see fit", which you note. That said, their comment is directly on point with respect to the fact that increasingly, access to acquired media can be revoked remotely, which I consider to be a major loss for non-owners.
Way back in the days of physical media including print, vinyl, magnetic and optical media, the buyer purchased durable license to content and ownership of the physical media. The license included the ability to play it back (or read it) as many times as they wished, and to sell the the media to another buyer. That license did not include public performance or duplication.
The arrival of digital (but still physical) media made enforcement of the non-copy provision of the law more difficult to enforce.
The arrival of The Internet has produced a new regime in which ownership of a perpetual license to read/play has diminished significantly (too much streaming, increasingly hard to buy media), and the impossibility of resale. My favorite commercial lie: "Own it on digital!"
I am very much concerned that conceptually, "ownership" is being hoarded by owners and cartels, restricting commoners to "rentership". This connects with right-to-repair, and to the new hotness of software as a service.
During the last 12 or so years, the company I work for has used and become dependent on Atlassian Confluence and JIRA, both of which have converted to Cloud service only (we are not large enough for the "enterprise" license). The result is that our family jewels are stored on someone else's computer out on the internet. We are hoping that Atlassian is secure. More than every single other provider of cloud services in the world. They all get hacked, and now our stuff is out there to be grabbed by the first asshole creative enough to get past Atlassian security.
Bottom line: The original conception of ownership of media and license to content is increasingly under control of someone else, such that continued access to content is no longer a trustworthy assumption. Rented rather than owned.