Whenever you say you want more powerful the answer is the current way it's primary goal is to be affordable and its primary target audience are schools etc.
E.g. The standard version of the Pi 400 with 4 GB covers most (consumer / school children / students) application purposes. 8 GB are rather needed in the area of video editing / prosumer / server, and would bring the price significantly above the „magic“ 100 € limit.[1]
The vendor just doesn't want to acknowledge the real role of Raspberry Pi is not limited to being a cheap tinkerer board anymore, it has became a standard (for an ARM PC and a hackable set-top-box/console in particular) and a vibrant ecosystem has grown around it - there are plenty reasons to still want a Raspberry Pi original (rather than something the competitors offer) when you don't need it to be so cheap (or even so small) but actually need more power, faster IO, more ports, more GPIO pins etc.
[1] https://pi3g.com/2020/11/04/will-the-raspberry-pi-400-be-ava...