You can tow start SOME autos, but you do have to get the vehicle up to quite a speed although it would be a lower speed if in low range.
At the end of the day all the starter does is spin the engine over. If the wheels are being turned and they then can turn the transmission which again is turning the engine, then, provided there is sufficient power being generated, or left in the battery, to run the injection system, it will start.
According to this guy you need to be up to 50 mph in high range and someone will doubtless be able to work out what (lower) speed you need to be at to do it in low range. Not sure if he is right.
I personally, just to see if it was possible, started my wife's semi-automatic car by letting it roll downhill until it reached the requisite speed. It too had a torque converter. All that is different is that you have to overcome the lack of direct drive in the box.
BUT there has to be fluid in the right places, and if there is not enough residual fluid in the right places, it might not work.. Also it depends on the construction of the gearbox, if it does not have a rear pump it may well not start.
It'll take someone like
@jamesmartin to tell us if it is at all possible with a D2 TD5 auto.
https://landroverforums.com/forum/discovery-ii-18/push-start-41518/
In any case tow starting is dangerous. Push starting or rolling it down a hill is safer, but best of all is jump starting either from another car or from a back-up battery.