It's a good question even though I feel the answer should be no.
Unless someone has a really convincing argument why I'm wrong, I don't see this as something we would want to add. The site already has a timeout built in where repeated edits in a short period of time are considered one edit, so unless altering that interval is appropriate, the current bumping behavior is clearly intended.
Anything that encourages "minor" edits seems to go against the overall message that trivial edits are to be avoided. Wouldn't adding code handling to hide "minor" edits encourage behavior that is explicitly discouraged?
Here relevant MSO questions to our discussion here:
http://meta.stackoverflow.com/questions/102499/feature-request-trivial-edit-checkbox
http://meta.stackoverflow.com/questions/74430/why-are-trivial-edits-discouraged
http://meta.stackoverflow.com/questions/107528/can-trivial-edits-not-bump-the-question
http://meta.stackoverflow.com/questions/82893/remove-trivial-edit-restriction