I think that Skoda only send the diesel out for reviews as that is the one they are pushing. I have towed with a lot of petrol engines and they manage but they need a lot more gear changing on hills due to lower torque figures. Given towed mileage tends to be far lower then normal driving it is just a case of if you are willing to put up with the extra work and higher fuel consumption.
The car is very new and possibly no one on here has towed with one yet.