If they were balanced, then fine. But having a 14 hit, 6 turret, 6 shield monstrosity with focusable str40 pyro battery and all of the Tyranid close range nastyness, for the price of an Emperor battleship. Well thats laughably broken.
The way the nid rules are laid out are contradictory and crap, so there may be some confusion. Perhaps it means there is str4 Front for the whole of the strbrd/prt, not 4 on each side, or perhaps its 1 bioplasma per side rather than one, though the bays do it the opposite way. Really no way of knowing, friggin document.
Edit: They have 10 hits because thats standard for a nid hiveship. The model agrees.
(noticed an error, gives cost of torps for hive ship, but no torp option listed in profile.)