Thanks for clearing up the air.
You can help new users make the correct choice for multiple outputs by pointing them to this PDF: https://resolume.com/manual/_media/en/r ... upport.pdf.
This doc uses a simple flowchart to help you choose what the best option for a particular use case is. It also explicitly mentions the drawbacks of using more than one GPU, why SLI is not a good idea, and how to work around problems with multiple AMD cards.