About the "miner conspiracy": I noticed that Coindesk is generally quite positive about Ordinals, BRC-20, Runes and related stuff (examples are:
this article,
this or
this video). Well, Coindesk
is was owned until late 2023 (edited) by the Digital Currency Group (Barry Silbert's company), which is not a mining company itself (it also owns Grayscale and several exchanges) but owns a subsidiary which is into mining: Foundry.
So while I don't think there is really a conspiracy, I think miners are not unhappy about these developments and may try to push them with associated media. It's actualy old style lobbyism.
Exchange companies are also happy with everything related to new tokens they could list and be charging fees for. So in media related to exchanges, it should also be no surprise if the tone about Runes and Ordinals is favourable.
Coindesk's current owner is an exchange company called Bullish, so that fits in the picture too (Edited: See above). At least I feel it's a bit "strange" that we see such few articles in crypto media critical to phenomenons like BRC-20. NFT sellers, exchange companies and mining advertising can also play a role.
I'm personally not categorically against Runes, it's a better protocol than BRC-20 for sure, and such tokens could actually also be used for useful purposes. My problem is the economic model behind most of the tokens, and that they could also simply be deployed on an altchain more suitable for it. Also that it is presented as something "new" when it is a protocol very close to old-style Coloured Coins (Colu protocol, for example).