I personally prefer interesting weapons over a simple assault rifle.
T+T is literally made to be generic. It's made this way so that it doesn't encourage a particular style over any other - leaving it up to the user to be creative with them, which is important. The BF3 weapons would look very, very out of place with a low detail build, because they are quite detailed themselves. Not to mention the very fact that they are
named after another loving game encourages users to only make DMs themed the same way, rather than doing their own thing.
T+T might not be for everyone, but it's a hell of a lot better than anything else in terms of global applicability. If you don't like the style, you don't like the style - that's your opinion. But you can't say it doesn't fit, because they fit Blockland itself like a glove while providing tools useful to create more interesting and balanced deathmatches without encouraging only a certain kind of playstyle within it.
If the weapons didn't have spread, long-range sniping would be the playstyle of choice regardless of what weapon you use. If the shots weren't raycasted, long-range sniping wouldn't really be desirable since any target not moving in one direction for a long period (which if they are, that's more them being bad than you being good) wouldn't be a feasible shot to take. These are design choices that actually make one weapon more useful for a particular situation than others - without these features, there's no point in even having multiple weapons.
If you're not using T+T or something that offers similar features, might as well just use only the default weapons and Ephi's shotgun, since that covers all your bases - you've got a straight shooter (the gun), a fast straight shooter (akimbo), a damage cone (shotgun), AoE (rocket launcher), artillery (spear), melee (sword) and the bow as a bonus. Nothing is redundant or only useful rarely.