I'm much more surprised that they decided to launch with a GPU that would have been considered awful if it had been released with previous pi four years ago.
The recent crop of unrefined, made-for-experimenters RISC-V chips that have GPUs that are a LOT faster. Add an extra $0.50 to the chip cost and use an out-of-the-box Mali GPU that's several times faster and has better driver support courtesy of ARM (who now support the open source drivers).