No.
The audience is not stupid and studios would do well to remember that fact.
If my mom can figure out that George Kirk on the USS KELVIN is not the Captain Kirk from TOS, and she hates science fiction, then the person likely to watch this movie can figure out "Oh, Romulus still exists in the past."
Galactic politics and their shifting dynamics resulting from temporal incursions are far more complicated than knowing who is related to whom in a soap opera sense, as you describe in the case of the Kirk family. Star Trek is not a soap opera, it is a space opera… with petty drama replaced with tech and science.
How would they establish to the audience that this film is set in the past to differentiate it from the Enterprise based JJ-films? Why even market the movie as being set in the JJ-verse’s past, instead of Star Treks ‘general’ past? They could have said ‘centuries/decades before Picard’ instead to hook the newly established Matalas fan base.
Well, this is a bit complicated for me to explain but I shall try to explain in layman’s terms… The Diviner infected the Protostar with the Living Construct with the help of Drednok. This was all a result of a time travel revenge plot very similar to that in the JJ-films, but in this case resulting from the destruction caused by a Prometheus class Starfleet ship appearing above the Planet Solum in the Delta Quadrant in the 2430’s, causing a civil war amongst the planets population. Though the planet was warp capable, it seems that only half of the population had access to this technology which complicated the Prime Directive. Anyway, the offer of Federation membership led to a devastating civil war amongst the inhabitants of Solum, otherwise known as the Vau N’Akat, because the divisions in their society meant that they were not ready to join the Federation. They used terrible weapons of mass destruction against each other in their internal struggle, a struggle exasperated by the complications of external influences.
This all leads to the Diviner travelling back in time to put right what once went wrong.
I will not involve Chakotay just yet.
Anyway, to cut a long story short, the Protostar traversed the Romulan Neutral Zone and as the Living Cinstruct could not be removed without destroying the ship, the only conclusion seemed to be to fly it in to the nearest sun… this sun would have likely been the Hobus star, causing a reverse cascading nuclear fission reaction, resulting in a supernova.
And what is with this assumption that Romulus needs to be kept from being destroyed? Where were all the Romulan fan boys back during the TNG era? Geez. Destroy the planet and suddenly people care.
The Romulans are not necessarily bad guys, the species originally left Vulcan as a result of a civil war. Romulan are actually *technically* as Vulcan as Vulcans. The Romulans did not agree with Surak’s teachings of logic and departed, or were otherwise encouraged to depart, their home world… this could have been a civil war of sorts, but has never been described as such on screen.