The Lament is still a fun big gun trooper BattleMech. The art for it is awesome, the firepower is adequate. I'd like note, alot Mechs of this era were known for being undergun when 3132 first came out. Look at record sheets for one which initially were created from the stats of Clicktech machines. Legionnare, Cuirass, Arbalest, Ghost, Targe, and Mjolnir. They were less-than packing allot weapons or various weapons. They had usually one primary focused weapon like some LRM Missiles launchers, one gun perhaps and a secondary weapon. Usually it was SINGLE medium laser or so forth. Due to the nature of the game.
The Lament is like those Mechs, focus on big weapons and some secondary ones, but not overly armed but in end tough machine.
I think it was a design philosophy which MWDA stat designers used, which is being carried on some level. You don't want every design to be perfect, or over gunned just like the next one. Lament has good balance of "gotcha" firepower, while not necessary "breaking game" quirks to it.