I'd tend to agree - you don't want a NEIPA conditioning for as long as you would a traditional bitter for instance - part of the conditioning of a bitter is about letting a bit of oxygen in, which is the enemy of a beer that is as hop-led as a NEIPA. This time round I'd give it 7-10 days total, and then package. Even after fg there's still work for the yeast to do - but day 3 is not a bad time for a temperature change, either up or down, it encourages a few more esters.
On dry-hopping - it depends if you want biotransformation. In general biotransformation is a good thing as it adds some complexity as one chemical is metabolised into a variety of other ones, geraniol (floral) is transformed into a variety of citrus flavours for instance. If geraniol-rich hops like Bravo and Citra are being used and you want it to be biotransformed, then even 72 hours is too late for the full effect, particularly if you've had a brisk fermentation as here. For many other varieties, the timing is less critical.