Yes, this is intended.

I got inspiration for this map from zm_lab_panic_b_4. That map had only like 6 rooms (and some where not that good) yet with good teamwork humans managed to win 35% of games. The map is also similar to zm_bumfight.

Unless the green light is ON ("55.5% random" chance to be ON), half of the map is sealed with cell doors and humans have little place to run. If the humans are bad then the round will end quickly. A good team of 2 or 3 humans can choose one of several locations and probably hold it themselves. There is also a bunker on this map (3 if the light is ON). Bunker has 2/3 entrances, 1 which need to be hold off, and other which can be completely sealed off with Props. In theory you could fit 15+ people in the bunker yet only need 2-4 good players to hold off the zombies.

The map is only in beta version. I need to play this map several times on the zombie server in order to figure out what needs to be changed.