Interesting. I look at it this way. I think you guys are correct, 90% of the time they would be used as a single, hand tossed grenade. The other 10% are for special circumstances when something is really being a problem and more is needed. There may be other tools but you have to carry them with you, meaning more weight. This would be standard carry and enable a couple of guys to combine thier resources in those special cases. I see this being really useful in forward units running without full support.

Just my .02