As long as they replace them with something and dont just drop frequency. Flexibility is key to the customer on most of the short,thin business routes and dropping from, say 7 daily rotations on a RJ to 2-3 on a babybus probably wont go down too well.
I guess this is where the Dash8-D will do good. As i understand its quite good on fuel, comparable to a jet in terms of speed on the missions they are used and can climb/descend well to meet ATC requirements around busy airports.

I have flown a few (maybe 15) sectors on RJs both in the U.K and the US and i have to agree with the article that they suck from a passenger perspective. A packed CRJ 100/200 is hell in the sky. ER4 a little better, but not much after 45minutes or so.