Well I disagree. The marketing (at least in the US and China) was the most expansive I've ever seen, and I've been following the Trek box office and marketing since STIV(1985-86). In response to just this sort of comment on FB I listed the evidence in my favor in answer to the posting of several websites reporting on the lack of marketing. Firstly, the perception was mainly from before May 20th, when the Fan Event let loose a record amount of marketing from the studio($130 million worth, breaking the franchise record).
One of the links was a Trekmovie or Trekcore comparison of the marketing timeline to prove this incontrovertible fan perception, only to find that for the same time period early in the marketing (and before May 20th) Beyond led STID in marketing events 15 to 8! Needless to say they never updated their story. I also posted here and elsewhere how I had 10 TVs before me at the gym and I saw multiple Beyond commercials, but not a single one for Ghostbusters or Jason Bourne (the preceding and following week's releases). They were literally everywhere.
Someone else pointed out to me that Millenials don't use or own cable much anymore but even there, the net presence was the biggest ever..the first trailer was nominated for an award and was watched by over 40 million people, putting it in the top 10 most watched ever. The second one well over 20 million. The Rihanna tie-in video was watched by 28+ million.
Another comment: Trek didn't do any tie-ins. Well this is true. Star Trek movies do not have a good record of tie-ins, but there is no real link between movie merchandising and movie success, it's usually the other way around. STTMP had one of the biggest marketing tie-in efforts and most failed miserably, even the first Happy Meal, which was never repeated again for Trek. STII released almost nothing in the way of tie-ins, and it was only when it proved successful that they put out trading cards, and a handful of others. Beyond is doing the same things, tie-ins are coming slowly in the next few months, but not a huge amount like ST09.
I'm convinced marketing wasn't the issue. I think there was a general malaise amongst both movie and casual Trek fans this year, and the odd thing is it extended to a lot of foreign countries as well, China in particular. it's possible that ISIS, terrorists, and Brexit have made people wary across the world about the stability of the global economy. Some are suggesting the fascination in the newly open Chinese market over the last 7 years is fading especially if the movie product isn't very good.
I actually think a lot of Trekkies..from what I've seen evidenced on this board and especially social media have a large segment of somewhat backwards mini-Luddites who like the shows for nostalgia. From my Discovery discussions, it''s clear a lot of them don't know anything about streaming or cable, some have even told me they weren't computer or smartphone savvy when I was trying to explain some technical things to them. A lot of them still have flip phones and collect DVDs (yes DVDs!). My impression is a lot of them don't even go regularly to movies..so they missed out on a lot of the advertising. Rabbit ears were just fine and we don't need to pay for cable and greedy CBS!

Yes, I've literally heard that sentiment a dozen times..people who still watch OTA broadcasts.
That won't impact the overall secondary revenue much, as it's about on par with the graph number.