4 seconds off port vs 30 sec SS can hardly be called a choice. feel free to try playing without SS glyph if you want, but it wastes a lot of globals and you'll realize it's a waste of time after ~2 games, then you'll realize you'd rather have it every 30 secs than port glyph.
Agreed. The spread damage and ease of SS glyph still outperforms the alternatives...10 more seconds on the CD doesn't change that at all. Having more UA's out quickly/easily is too vital.