Single driver point source speakers vs. the world?

Okay, I've been a 'stat guy the majority of my audio life.

Recently I acquired a humble speaker that has me rethinking my entire approach to audio, i.e., big power amp requirements driving mass amounts of current to 'stats.

The speaker I'm referring to is the Cain & Cain Abby. 8 watts of 300b SET amplification into these speakers is as good as I've heard. No, they don't do bass but they excel at everything else. So the ? for those with point source design experience is does the lack of a crossover in designs equate to these types of results in other point source or single driver designs?