That won't help you much, Heating frets is the way for releasing them no matter if they are glued or not. Some boards are inherently problematic and the only way is to proceed slowly and not lose the bits... From my experience boards with grain not parallel to surface will typically chip badly on one side of slot and the chips will have tendency to separate completely and fall away. Also boards with perfectly radial cut (quartersawn) will be prone to chipping like the one in OP. In those cases drop of water, heating and very slow pulling (I'd call it wiggling-out) helps tremendously.
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