It was not hostile to new tropes, adding them simply wasnt the point.
5e wasnt against them, it was simply made to be the 'default D&D' experience, not with an eye to the future, but with an eye of representing the 'ur-D&D' which would then go into stasis.
Like this is known, its been stated openly that there was every expectation after 4e, that the next version was going to be it, wrap it up, and done, dont forget to turn off the lights.
It was not meant to 'excite new players'.
It was not meant to innovate the genre.
It was not meant to deconstruct RPGs, or represent out of the box every play style, every trope, every concept.
It certainly was not meant to appeal to 4e players.
It was meant to take what the Western consciousness understands to be D&D, implement a basic, straight forward framework, minimize the number of systems in play, and just wrap it up in as much core, foundational aspects of D&D as possible.
And because that basic package, the release version of 5e, actually struck the right tone, and resonated enough because we understand that it fundamentally is D&D?
It was successful.