This suggests you know the answer to your question in the OP, regarding why we're not listed more widely. In fact, our history suggests Hive has deliberately been managed to avoid interest from outside investors with substantial non-hive stakes. 'We', the platform, as managed by the majority stakeholder(s) whom maintain the code by maintaining the consensus, don't manage the platform in order to attract the bright light of the Sun, but to benefit the majority of stake in Hive and it's holders. The Sun shining on Hive is the greatest threat to their continued enjoyment of their possession of control of the platform, as Steem demonstrated.

The fix for that is to deprive the majority stakeholders of their control, to introduce another metric for electing witnesses that prevents stake alone from enabling complete control of governance, because that defangs the power of external investors to simply buy complete control of governance. These incentives presently in the code produce the current paradigm of discouragement of bright light on Hive attracting investment, because that is the threat to extant majority stakeholders retaining complete control of the governance of the platform.

This is why the problem can't be fixed. The only solution to the threat the bright light of the Sun seizing unitary control of Hive as it did Steem is to eliminate the present unitary control of Hive possessed by the majority stakeholder(s) of Hive. This leaves Hive skulking in the shadows, where the Sun cannot shine, and that is what current management acts to maintain, because that is what maintains their ability to manage the platform for their benefit.