John Maxwell wrote an analysis on your initial post on how most platform initiatives seem to fail in the EA community and that the ones that did last seemed resulted from a long stretch of consensus building (+ attentive refinement and execution in my opinion). This was useful for me to consider that more deeply as an issue in coordinating funding in the EA community. It at least led me to take smaller, tentative steps to trying things out while incorporating the advice/goals/perspectives/needs of people with deep understandings of aspects or a clear stake in using the final product.
John Maxwell brought up some interesting points. He suggests that platforms can experience the chicken and egg problem when it comes to getting started, and that intensive networking is a way to overcome this issue. I agree that platforms often have this problem, but the EA Angel Group resolved this not by networking intensely but instead by offering a lot of value to angels. This would incentivize them to join the platform even without a large number of existing grant applicants which would in turn incentivize grant applicants to apply.
Of course, we do need a stream of incoming grant applications to remain viable, and unfortunately we encountered some unexpected issues when attempting to collaborate with EA Grants and speak to many community members as part of several strategies to acquire grant applications. As mentioned in my progress update comment, I am currently pursuing alternate strategies to achieve this objective which involve steps that I have greater control over (and less steps that require the approval of entities whose decisions I cannot influence). That being said, I think networking and collaboration is highly valuable, and am scaling that up even as I pursue strategies that do not require networking to succeed.