Who ever sent this email,
You can always park your car and change the tire at stop/rest area if not in the middle of the motorway their are several stops/rest areas, petrol pumps where you can easily park your car and do it.
Anyways yes if indus motors has found general tires being faulty they should recall all cars and change tires. But for now this is being done in Ativ X models only.
1.3 ativ is I guess still getting general tires for now.