dave2008
Legend
It does have options that are modular (right there in the 2014 DMG). However, the modularity people are talking about as never actually "advertised." It was discussed fairly early on in the design process, but that line of thought didn't even make it into the playtest material. Something being discussed and being advertised are not the same thing.5e was advertised as having options that are modular.
That being said, i would love for them to lean into real modularity in the next iteration of D&D