It's a silly statement. Type, composed of little chunks of metal placed adjacent to each other, has a problem with scripts that aren't practically decomposable into little chunks placed adjacent to each other. But that's equally true of ‘western’ cursives and equally false of ‘eastern’ non-cursives, including Semitic scripts like Hebrew and Ethiopic, as well as South Arabian¹, which would have been perfectly suited to type but was displaced by the cursive Arabic script.
uhm, you do realize South Arabian alphabet was last in active use more than a thousand years ago. It now bears no resemblance to modern Arabic type. At all.
I'm reading your argument as suggesting that over a quarter billion Arabic native speakers should have learned a new script? Not sure if that was sarcastic. Either way, if you are making this argument, it is easier for these speakers to learn English instead..
¹ https://en.wikipedia.org/wiki/South_Arabian_alphabet