That is very simplistic, shallow and ultimately false view of the game. The game is a race for win but not who can build a colony-killing fleet first. Limited resources, limited number of objects which one can build force smart player to optimize his decisions along the path to the victory. Just building a colony-killing fleet will not guarantee you the win. Do you have to use probes? Yes! Should you expand if you can? Yes!
Is that boring? Is working 8 hours per day boring? Is driving the same car for 5 years boring? Is raising your children for 18 years boring? Is having same parents for 50 years boring? It may be… for some people but not for all.