CPA Agencies, next dropshipping scheme?

Am I the only one who noticed all these big and small YouTubers promoting the CPA agency business model, especially since the pandemic started. Everyone's selling their course or coaching sessions for CPA agency owners especially "how to scale your agency to $X/month and they are all putting these big numbers like 5k/month, 10k/month or even 30k+/month.

Does anyone have any experience with this and is it such a sustainable business model or is this just the next dropshipping scheme in terms of selling courses?