Okay a better example would be a KV-8 somehow dropping it's super-flamethrower. It's a weapon only meant to be used by that unit. Without it, the unit isn't very effective, while another unit somewhere else suddenly more effective than it could ever become otherwise.
This isn't like a Guard dropping his DP or a Grenadier dropping his MG 42. This is a keystone part of the unit being dropped, possibly being taken by any other unit and becoming the new Obersoldaten.
And how effective are guards at AT without their droppable PTRS?
How effective are irregulars without their LMGs?
How effective are LMG paratroopers who loose their LMGs?
That is a bad argument and you are simply wrong here.
Its also not exactly easy to loose the LMG on them unless you insist on fighting tanks.