In the other direction, it's basically a tautology. A "nova" or "new star" is, by definition, a relatively fast change. Much slower changes to stars also occur, but they tend not to get news articles written about them when they happen gradually over millions of years, and we don't call them novas.
For a neutron star, at ~12 -- 30 km diameter, light-speed timescales are on the order of 40--100 microseconds, which would be the lower bound on whole-star cataclysmic events.
(Time dilation might extend this somewhat, perhaps by a factor of two or so.)
For a white dwarf, ~10,000 km, lightspeed events would be about 30 milliseconds (~300 times longer than on the neutron star). That's about 1/10 of an eyeblink.
That is, a comfortable and familiar acceleration gives a human-lifetime-equivalent journey (subjective time).
If you're planning a round-trip, you'll find rather more time has transpired on what used to be Earth.
Or less, depending on the rotation of the universe as a whole.
However it is also the specific context in which the lifetime-universe-traversal concept emerges.
That is not consistent with my observations.