Is This Supposed to be PROFESSIONAL Baseball?

Am I the only one who feels the celebrating at the end of major league
baseball games, especially those ending in a walk off have gotten a little
excessive?

These guys are supposed to be professionals after all, and often they're
jumping around like popcorn in hot oil in games that have little long
term significance and don't affect post season play.  It goes against the
understated stoicism which has long been part of the baseball myth, not
to even bring up an arcane idea such as it's poor sportsmanship and
disrespectful to the team which has just fallen short.

Here's an interesting coda to this posting:  players hurt while celebrating.