I don't see how. Speakon is no harder to terminate than anything else, as long as you have the right (PZ1) screwdriver tip/bit. Compared to an audioquest or wbt banana, for example, Speakon has half the screws to turn because its strain relief is better engineered. And obviously Speakons are more practical generally if you have the choice. Nobody's going to disconnect a Speakon and accidentally rewire the speaker or amp in opposite polarity! Also, in a complicated multichannel system with in-wall wiring, nobody's going to want to deal with this kind of panel writ in banana plugs.
View attachment 48398
(Yes, that picture of the wallplate behind our media cabinet is lifted from an upcoming think piece on Speakon.)
Still, I assume at this point rational people are buying bulk wire and cutting to length as opposed to buying prefabricated wires that may result in unsightly coils of excess to stick somewhere. Interconnects are different, because they generally require soldering.