It's true the ST had almost no presence in that market. The Tramiels I think wanted to get in there and really shake it up, but they made some mis-steps.

GDOS (part of GEM with proportional fonts etc) not shipping with the original machine was a huge mistake for one.

Still Calamus + the cheap Atari laser printer was a pretty amazing piece of DTP kid for the people who got it.

That and it was simple to just turn your ST into a Macintosh. But with higher resolution and slightly higher clock speed.