I generally just find them simpler, as they're sort of a sandwich-esque format. Hard tacos often feel more satisfying to eat, but I think the main appeal is visual. They look very aesthetically appealing compared to most other formats, such as burritos for example
SGM and AHG have been a very great part of my life (aside from the 2-year mod term) and I'm so glad to have been part of this. Obviously the community will live on but TTT itself won't be the same