Industrial in the game represent ca 1700 to 1920 from what I know and only 17 techs seems very short and lead to stuff like ww1 warfare is just one tech after 18th-19th century line infantry, shorter than the gap from arquebusiers to musketeers which seems quite extreme. Even the gap from 17th century muskets to ww1 is just 3 technologies away from each other.