This is good advice.

I've learned many things in my years of tinkering with and riding bikes, but one of them is that the study of ergonomics on a bike is often measured in fractions of an inch, or centimeters if you like. That is, what might seem to be a small change (just a few centimeters of rise, or just a few degrees of back sweep, or just an inch in additional reach), can make a very large difference in how the bike feels. In other words, don't go overboard on changes...start conservatively and make adjustments in small increments.