2 scenarios;
1. Gargoyles get introduced to the wider Marvel-verse. The main issue is that NYC is already pretty overcrowded, even at night. Which brings #2.
2. Gargoyles get introduced to DC. Now, NYC in DC Comics hasn't really had a constant hero presence in some time. Bringing in the Gargoyles fills that bracket, and still leaves the door open to crossovers. Like an Elseworlds with TMNT (heroes above and below!). Or, with Gotham generally portrayed being in New Jersey, having the Bats crossover every so often.
And yes, still annoying that Disney refuses to do anything with the franchise, despite its potential.