Why does the speaker say what the Herzau's did at home is ironical?

为什么说话者说赫索家在家里做的事是讽刺的？

youdao

AT a Hindu temple in Chicago, hundreds of people of Indian descent, professing many faiths, turned up from across Illinois and farther afield to hear a speaker from back home.

在芝加哥的一座印度寺庙中，成百上千的人穿过伊利诺伊州或者更远的地方，来到这里，倾听一名来自家乡演说者的言论，那些人具有相同印度血统，公开表明具有许多种宗教信仰。

youdao

The speaker hammered his point home with examples that the listeners could not deny.

那个演讲者以无可否认的例证使听众接受了他的论点。

youdao

This specialized material, formed into the Quintet's speaker cabinets with non-parallel walls to diminish internal standing waves, is truly the next generation in compact home speaker technology.

ENGADGET: Klipsch refreshes Quintet home theater system HD

The Logitech Wireless Speaker Adapter for Intel WiDi-enabled laptops presents a tremendous opportunity for Intel to help customers extend the PC audio experience to a higher-fidelity home speaker system.

ENGADGET: Logitech intros $30 Wireless Speaker Adapter for WiDi-enabled laptops

Then, by mixing the seven recorded channels down to five, they create a recording that can be played on any five-speaker home theatre system.

ECONOMIST: How to reproduce the ambiance of a live concert in the home