> At the end of the day who really cares what is and isn't a "tech company"? Every company has a tech aspect to it these days.

Because the way a tech company grows and a non-tech company grows are very different. Nike extensively uses software but you wouldn't call them a tech company, because their growth is limited by sales of their apparel, which is a physical good. 'Real' tech companies aren't typically limited by the distribution of their product (other than scaling issues and the like). There's (generally) nothing physical produced so there isn't a resource problem - growth can be much greater and faster.