For example, it doesn't make sense that DUST, an illiquid & low market cap coin, is in the global pool while WIF is still not.

Seems there's plenty of justification for WIF to join the global pool, at least with a low LTV like 30-50%. It has multiples higher market cap, liquidity, & exchange listings than DUST. At least some transparency on the process for isolated vs global assets would be appreciated.