The amount of accuracy and durability you'd need would be a couple of aspects to consider.. if one needs to deal with thousands of such fasteners routinely, they might find it worthwhile to find a good source, such as Apex or equivalent.
I've had a little difficulty from time to time, in removing a screw from plastic or sheetmetal consumer products. They aren't too difficult to remove since they're not torqued very tightly to begin with. New fastener styles are generally not too difficult to remove.
Left-hand twist drill in a pin vise or suitable handle. Improvise with a suitable tool.. or modify a low cost more-commonly available tool. Slightly damage the appearance of some screwheads, then replace the screws with standard ones. Heat the fastener a little.. or more, with a slodering iron tip. Use one removed screw to use as a die, to then drive a suitably sized section of mild steel or brass into, or over, to percussively form a custom tool with, for careful occassional use.
Maybe the manufacturer is just looking for an obvious sign that someone has done unauthorized modifications to returned equipment. Sony, for one, will refuse to examine/troubleshoot/estimate repairs, or accept for exchange.. some of their equipment that has been opened by an end user.