Perhaps, this question is too "trivial". It seems that Jewish funeral homes tend to be the primary "printer" and supplier of Jewish calendars. For decades, many yeshivot as well as shuls get the large colorful calendars from Jewish funeral homes.
Yes, I do get smaller calendars in the mail from the numerous yeshivot and other charity orgs that love to flood my mailbox this time of year. But, as stated, these are usually small "pocket" calendars and they are rarely as colorful and large like the "funeral" calendars.
Someone in shul joked, "It's not as if my grandma who died 20 years ago needs to know when Yom Kippur is this year!" There's both truth and some falsehood to that statement, but the question is why, how, and when funeral homes got involved in this "business"?
It does seem somewhat odd, in a sense. Their business is mainly handling the dead, whereas a calendar is more important for the living. I would think that a Judaica store or a shul should be the main printer and supplier of free calendars. As a matter of fact, perhaps they should supply these calendars to the funeral home, not the other way around.