Interesting …. as a past Schneider rep I know that Schneider have always had fuses and fuseholders available, even in the old Telemecanique days. These were made by a third party however so margins were always under pressure and stock was typically non existent so there was little interest in selling them. Given the vast majority of applications are probably more suited to breakers anyway I can see why your local sales guy hasn't mentioned them before. We pretty much only used them when absolutely necessary or as a “do you want fries with that” sale.
Maybe something has changed and Schneider has bought a fuse company? I suggest that more likely, some product manager within Schneider has decided that he is not moving enough fuseswitches and fuses etc and has “wound up” the sales team !