Temp is as important or more. Too much and the neg is too dense to get a print, not enough and you have a single tone image or is too thin to print. As in c41 the dev temp is critical the bleach and fix temps are important but not as. Unlike neg film e6 film has little latitude and less when crossed, so requires pretty exact exposure -- or I should say once you know what you want your exposure latitude will be very narrow.
Just like b&W film you will discover that you can match exposure and development to match (to a degree) scene requirements. Unlike B&W you can not choose a paper/developer(s) or contrast filter combination to bring the neg back in line.