Yes it would according to some astronomers. By adjusting this term 'just right' you can apparently eliminate much or all of the need for dark matter. The problem is that this 'adjustment' violates general relativity and general relativity would have to be reworked or abandoned to account for such a new term in the weak-field, 'Newtonian Limit' to gravity. There is no evidence that general relativity is incorrect based on the other tests that it has passed. Milgrom gravity is an interesting idea, but more has to be done with it to make it testable in other domains.
General relativity is testable in many different circumstances.
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