This comes up almost as often as the twin "paradox".My first thought was that the very postulate of Rinder horizons is an affront against Einstein's "constancy of the speed of light", as a light source beyond the horizon would not be seen.
The speed of light is c when an observer makes a local measurement! If an observer makes a distance measurement or an average speed measurement between two locations the speed of light is not necessarily c. It is not c and anisotropic in case the observer undergoes proper or inertial acceleration.
I do not agree.We all agree that there are sufficient practical barriers to a Rindler horizon, correct (infinite fuel source, CMB annihilation, etc)?
Even for travelers on a bullet train slowly accelerating from 0 to a top speed of 200 miles/hour in a timespan of one hour there is a Rindler horizon. Only after the acceleration stops the horizon will disappear.
Did you read question and answer nine of Ted Bunn's article?