They're possibly thinking about something like the Amlogic S922X. A 12nm SoC with Quad A73 and Dual A53, its definitely more modern and more efficient, though "better" is pretty subjective. As implemented in the Odroid N2 [0], its not cheaper at $79 with 4GB RAM, compared to Raspi 4's $55 (or $63 and $45 for 2GB, respectively). Hard to say if they cut the board down to remove all the things Raspi doesnt support and scaled up to Raspi scale if they could match the price. If not, it'd likely be close.

[0] https://www.hardkernel.com/shop/odroid-n2-with-4gbyte-ram/