That presentation by our product team explained the product strategy and the TAP program, and what WAS coming in v6 (rather than what was already in the product).
Keep your eye on the product area of the Portal for announcements and new features in releases of the product. In the same way that v6.2 includes some new VBOs for some Congnative solutions, new interfaces with the likes of Splunk and Trustportal etc will be coming on line quickly over the coming months.
In the meantime, if you already have Splunk in your organisation there is nothing stopping you using it as part of your Blue Prism platform - other clients are already using splunk without any VBOs/Interfaces from Blue Prism. You can use Splunk to monitor event logs, you can use it as a method of sending alerts (I know one client simply pointed Splunk at a local folder in the resourcepcs where csv files were dropped with alerts in).