That's why attackers should pay attention to science and take steps to improve their bpa... it's not too hard to attain 1000 bpa with some planning, though there are periodic setbacks like heavy learn attacks in war.

Putting libs on attackers is still dicey, mostly due to unstable defense... and of course, after a land chain, the mods to WPA aren't very useful.

Using libs oow as an economy building isn't too bad. Homes/banks are better for money, but libs' extra wpa is a useful asset in retalwars where your core FB can stall econ. It is unlikely that libs will be enough for heavy attackers to nado/LL at war start though, though it does mean less AW/massacre is needed to make that happen.