By including a copy of the exact MIT license text, we make the terms
of the merfi license very clear.
Also, in the specific case of merfi's MIT license, all derivative
copies of merfi are required to contain the disclaimer text within the
MIT license (as described in the sentence "The above copyright notice
and this permission notice shall be included in all copies or
substantial portions of the Software.") So in order to ease
development and distribution of merfi, it makes sense to simply
include this text in the upstream project.
By including a copy of the exact MIT license text, we make the terms of the merfi license very clear.
Also, in the specific case of merfi's MIT license, all derivative copies of merfi are required to contain the disclaimer text within the MIT license (as described in the sentence "The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.") So in order to ease development and distribution of merfi, it makes sense to simply include this text in the upstream project.