I dunno about software architects, but it's not terribly surprising that people are defensive over the engineering title.
The difference in difficulty between computer science courses and the engineering courses is like night and day, so it doesn't really surprise me when my EE/CE friends are frustrated when compsci majors try to call themselves engineers.
The difference in difficulty between computer science courses and the engineering courses is like night and day, so it doesn't really surprise me when my EE/CE friends are frustrated when compsci majors try to call themselves engineers.