As noted, all this connectivity is made possible by using Simba's MDX Provider for Oracle OLAP.
One of the reasons his presentation was so well received is that he spent the majority of the presentation doing live demos, not just showing slides. I encourage you to have a look at the presentation to see for yourself.
The BIWA Virtual Summit itself was very successful.
Did you have an opportunity to attend all or part of the virtual summit? What did you think? What topics would you like to see discussed in future BIWA summits, whether virtual or physical?