As always, I recommend reading the actual document Amoris Laetitia. That said, the synod bishops were inclined more to joy than depression over the state of marriage in the world:
1. The Joy of Love experienced by families is also the joy of the Church. As the Synod Fathers noted, for all the many signs of crisis in the institution of marriage, “the desire to marry and form a family remains vibrant, especially among young people, and this is an inspiration to the Church.”(Relatio Synodi (18 October 2014), 2) As a response to that desire, “the Christian proclamation on the family is good news indeed” (Relatio Finalis (24 October 2015), 3)
I noticed a few headlines on facebook and the google along the lines of “five points to hear about from me” or “ten takeaways that you can have too.” I think the very first paragraph here sets the tone. Marriage and family is good news. One might also say it has the substance of joy. What do you say?