TORONTO — “They always get better!” The once common cry of outrage grew to a fan cliché and has now morphed into a bit of a sarcastic meme. To be fair, empirical data shows that players don’t always get better when they leave the Mariners. Some players do get better (Chris Taylor), some get worse (Robinson Cano) and some remain basically the same player they were during the time in Seattle — terrific (Nelson Cruz), terrible (Chone Figgins) or tradable (too many to list). That brings us to the curious case of Yusei Kikuchi. Is he better? Is he worse? Or is he the same talented, but frustratingl…