You want a jigsaw designed to stir up carcinogenic dust in the air around you? The carvex 420 also does not have this function, and even though i miss the function my previous Bosch got me used to. I admire Festool for this dared move.
With the other brands you are in theory forced to use a dust mask when using this feature, nobody does IRL
The Mafell does have a blower, it's ok when working outdoors in the wind, a big no no indoors.