Actually, the SILO approach is a good structured approach to the overall content structure of your site. It offers a better planning approach, so that your content will look neat and related in its respective segments, and it also automatically group similar content together in that aspect.
Such circumstances would also allow the web visitors to easily locate related content on your site, and hence that could lower bounce rate, and further improve user engagement on your site as a whole.
Implementing the approach may not have immediate or direct result, but the benefits from the result can be seen in the long term respectively.