I agree with your suggestion in general in regard to having criteria, but let me share my thought (same as @Juminstock) once the dApp staking v3 is up and running for a certain amount of time window, as the dApp tier and the voting system would intrinsically establish certain type of criteria.
I would say the recent delisting proposals / opening discussions were mainly after quite of observation (for example, https://forum.astar.network/t/proposal-to-open-a-discussion-for-adao) rather than sorely based on emotions. But overall, I am sure that we are doing all of these for healthy growth of Astar Network and ecosystem, 