I feel that all users should be able to suggest edits for simple issues such as spelling, syntax and formatting. However, they should not be rewarded unless multiple issues (including title, tags, etc.) have been addressed as outlined by the definition.
The inequality is that users with 2k+ rep can edit without approval and are not rewarded. The edits that are mostly done by these users are actually too minor by the definition:
Suggested edits should be substantive improvements addressing multiple issues in the post.
But, they are needed for readability and quality improvement. When I see consecutive minor edits, I feel like I must then inform the "offending" users that they are making too many minor edits and to make more substantial improvements when their edits are perfectly helpful, but are considered "too minor."
While there is an alternate proposed solution to allow users with lower rep (500+) to make edits, I think all users should be able to better the community. I don't think approving as too minor is suitable, as it still rewards edits that are too minor. My request is to see an "approve minor edit."
I also feel that users that have had a certain amount of rejected edits should be (temporarily) suspended from suggesting edits. This will help cut down the moderation effort.