1. The mod is unintuitive.
2. This is a bad thing because any program is supposed to be intuitive and user-friendly, to make it easy to get into and use. This has to do with the overall experience of the end users.
3. The fact that it's unintuitive also means that you have rounds where people don't know what devices to use at what moments, gallofrees being run off the edge of the map, people camping a CP you can't cap, antitank mines being laid to stop infantry, etc.
It's easy for you guys with hundreds of hours of playtime to look down at newcomers and call them noobs, but try to put yourself in their place for a sec. I tried to have a go at 2142 some time ago and was utterly lost (also totally forgot there is probably a popup hud system in 2142), not knowing what pretty much any of the gizmos given to me did until I'd wasted them by throwing them at the ground (which I did hoping they wouldn't blow up and hurt passerbys happening too close). Does this make me a noob in SamZi's eyes? Very likely. Would the mod be easier to play if gizmos had labels? Definitely.
"One of the bitches actually gave birth while she was attacking, and her puppies joined in on the carnage."
--the awesomeness that is Boatmurdered.