Some buy devices with display flickering nevertheless while others (like me) do not buy them at all. If Apple wanted to sell to both groups, it would offer choice making both flicker-free IPS and flickering OLED available for every type of device.
Currently, several companies try to sell OLED as the "more premium" type of display so offer some of their more high end devices only with OLED (or sometimes flickering mini-LED). Apple might be using this sale strategy for Pro versus non-Pro models or Apple might have the strategy to trickle down this alleged "pro" feature to Air and Base model product lines during the following years - we do not know yet which strategy Apple follows.
The endconsumer's choice has become: if you want to avoid (potentially) unhealthy displays less suitable for static contents, you must choose a non-Pro product or a different manufacturer. In some years and for avoiding unhealthy displays, he might face the choice between buying Apple products nevetherless or choosing a different manufacturer.
This would fit perfectly into Apple's greater strategy of dividing the world into loyalists and critics. Expel the critics to keep the loyalists loyal. Apple has applied this strategy to the Walled Garden, the refusal to offer macOS on iPads, the Apple tax of upselling storage and other features, the notch, and the pushing of data-abusing iCloud terms.
Or Apple might change after ignoring years of protest, like Apple changed back from Butterfly after years of arrogantly terrorising the consumers.