I may be the least qualified person out here to respond to your question. From a distance I offer these observations:
Lois is MORE that an announcer, a voice on the air. I get the idea she is one of prime-movers in the shaping and operation of WABE.
She is hosting a music format that does not need, that does not WANT a fast-paced, go-go voice.
She apparently walks the walk. She is not a talking head sitting in a studio babbling about something she knows nothing about. She runs with, she socializes with the people who enjoy classical music, the people who financially support classical music.
Having been accused of having a "lazy voice" in my case, I rather enjoy her slow pace. Makes me and my own foice feel validated.