Title is a bit misleading, since Oracle is the brand and well as the a specific database product, he is claiming that Oracles cloud hosted version of mysql is faster than AWS Aurora, not claiming that Oracle DB is faster than mysql.
Also, the comment at the end of the article "... RDMA and other key drivers behind Oracle’s ascent to being the world’s hottest major cloud vendor" demonstrates that the person who wrote the article is not interested in asking hard questions. Oracle Cloud is quite a way from being the "hottest cloud vendor" by any meaningful metric, right now.
> "We’ve announced a new database — a new version of MySQL with a fast query processor called HeatWave — and we have customers moving from Amazon Aurora where they’re experiencing a 1,000x speedup versus Aurora."