My flights are from Bonaire to YUL through ATL and the original schedule had a legal transfer of 86 minutes (I broke my usual 120 min minimum transfer rule).
Flights are Delta from BON and a Delta feeder to YUL.

Schedule was changed and reduced by 2 minutes and is now an illegal connection but Delta won't change flight without a change fee that approaches 50% of original total cost since change is small.

We arrive at Terminal E and leave from Terminal D, I think.

No checked baggage and have Nexus (GOES) that should minimised time to pass security, etc.

Is this doable assuming flights are close to their scheduled times?