To me, the approach of product management makes a lot of sense. For example with linux and gaming, some of the gamers can surely be reached with a nice website, a streamlined installer etc, initiating a conversion from Windows. However, what really boosted Linux in the gaming space is Steam's involvement - first by creating an easy to use product out of Wine (Proton) and a great bundle with the Steam client, and then by releasing the Steam Deck, which has Proton preinstalled and as default. This created an incentive not just on the gamer side, but on the developer side as well.
I want a similar thing for GrapheneOS. I think the current project and website is not just fine, it's more than enough the way it is. Where it needs more energy is reaching users via b2b agreements - like having phone manufacturer support for GrapheneOS, and even better, Graphene preinstall offerings, preferably in a wide price level. Murena, for example, is one that's on the right track with their similar thing. I want this for GrapheneOS as well.
I guess the TL;DR is: they don't need to target the end user better, they need to find businesses as partners.