What's that got to do with anything? Those planets would still need to be evacuated either way. I mean, we know from Picard that they started the evacuation years in advance of the supernova anyway. Because obviously you don't wait until the last second to evacuate dozens of entire planets.
This makes me think of the Core Explosion in Larry Niven's Known Space. Basically, for those unfamiliar with it, stars in the galactic core start going supernova, which, due to close proximity (a light-year or two) to other stars, causes those stars to supernova, which causes a massive chain reaction supernova and a hard radiation wavefront from the core that will irradiate and sterilize planets out to the rim, and in several thousand years, give or take, the area near Earth ("Known Space") will be sterilized.
One of the races of Known Space, the Puppeteers, who are fearful and downright paranoid, respond to Bey Schaefer's discovery of the Core Explosion by buying a planet-moving stardrive from the Outsiders and flying their five homeworlds at high sublight speed out of Known Space.
At least, that's what it
appears they're doing. One of the characters in the
Ringworld series realizes that if the Puppeteers have a stardrive that can move planets at high sublight speeds, they also have shielding to protect their planets from the hard radiation and debris those planets are going to fly through. What the Puppeteers are
actually doing is running... until they turn into the Core Explosion wavefront and return to Known Space, many thousands of years from now, and claim the now sterilized worlds for themselves. They have to run out to the rim, and by the time the wavefront reaches them, Known Space will be burned clean. It's why the Ringworld terrified them; the way it was constructed hardened it against the wavefront, so trillions of Pak descendants could ride out the Core Explosion and potentially claim the sterilized worlds before the Puppeteers returned.
It seems to me that the SCE could have done something similar for the Romulan worlds. The Core worlds are goners, obviously, since the star goes supernova, but for nearly worlds, within about 100 light-years and at risk of sterilization from the wavefront, the SCE could build giant planetary shields, thousands of emiters flying in tandem that would be oriented between the inhabited world and the Romulan supernova, to create a shield that would take the radiation.