Their licensing does not ban benchmarking; it only bans publishing the results. A subtle but important point.
By all means, run benchmarks on your workload profile and choose the technology that works best for you - that is perfectly OK. But not make claim that xxx beats oracle in yyy.
Oracle goal here is to make a good enterprise ready DB solution; not to fight the open-source community on hundreds of different performance claims, half of which have been specifically engineered to put the competing, leading product in a bad light.
You might not like what oracle does or how they do it, but it’s clear that they have a target on their back and sometimes the best way to play the game is not to play at all.
Just look at the « independent and fair review » that Top Gear made about Tesla.