Without stating specifically any individuals or any schools that have approached me, I can say that, yes, that has been brought up many times. There is a general feeling that there are not enough materials, particularly for certain dialects. There is a feeling that there are some materials being developed for certain dialects for certain languages but that other dialects do not have nearly as much material. I have had some requests about why certain languages have so much more than others.
I have visited a couple of the teaching and learning centres that are responsible for the development of materials for the schools, not for all of the development of materials, but they do quite a bit and I know that the staff in those centres are feeling very pressed. They feel they do not have enough people to do the job that needs to be done. So, yes, that has been brought up a number of times to me as a concern.