source E was an extract from professor wallace hadrill, who started the Herculaneum conservation project. basically a massive archaeological project in Herculaneum aimed at restoring the town through funding, as the town received even less international funding than pompeii and was neglected.
even if you didn’t get to study him, all you really needed to know is that he was talking about how Herculaneum by comparison has far less public buildings which makes studying its public life a bit more difficult. but you can make inferences from the bathhouses and the theater that’s there as well as the absence of many public buildings to show the wealth of the town