While this board has a nice selection of features, its likely the pi4 is faster in any number of workloads due to the use of the A72s. A55's are still in the small/energy efficient category (the article notes they are slower than the existing rk3399). Which is fine if your doing traditional micro-controller functions. But the problem with these boards is they end up being application specific rather than general purpose boards. For example they have hardware video decoders/etc but as soon as the user tries to decode something that doesn't have hardware support it falls back to the CPU, and turns into a slideshow.

Now if this were the rx3588 with the A76s it would be a different story.