Creators?
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Software sells hardware. Software exclusive to Apple can only sell Apple hardware. Creators using Apple's software (FCP and Logic), are likely to drop the money on an upgrade.
Also, the linked article literally uses Affinity Photo as a benchmark - which is now owned by Canva and is free. But they don't mention Photoshop and Lightroom - which are the industry standard. The inclusion of Photoshop/Lightroom over Affinity would support your claim that Apple is only chasing the high-end customers, but given that they've mentioned editing iPhone footage in FCP and using Affinity in the M4 release, suggests that the Creator Studio subscription would be a good time to announce new MacBooks.