Not related to the things you guys have been discussing, but it fits the thread...
Last 5 years, playoff teams (League champ in Italics, WS champion in bold italics):
2014
AL - KC, Bal, LAA, Det, Oak
NL - SF, StL, Was, LAD, Pit
2015
AL - KC, Tor, Hou, Tex, NYY
NL - NYM, ChC, StL, LAD, Pit
2016
AL - Cle, Tor, Tex, Bos, Bal
NL - ChC, LAD, SF, Was, NYM
2017
AL - Hou, NYY, Cle, Bos, Min
NL - LAD, ChC, Ari, Was, Col
2018
AL - Bos, Hou, NYY, Cle, Oak
NL - LAD, Mil, Col, Atl, ChC
Playoff appearances by team:
5 - LAD
4 - ChC
3 - Bos, Hou, Was, NYY, Cle
2 - KC, Col, NYM, SF, StL, Pit, Tor, Bal, Tex, Oak
1 - Atl, Ari, Min, Det, Mil, LAA
In five years, that's 23 different franchises making the playoffs, out of a possible 32. Some teams that were awful in 2014 have become great (Hou, Bos, ChC). Some teams that were great in 2014 have become awful (KC, Det, Bal). We've had five different WS champs in the last five seasons.
I'd say that baseball isn't "broken". I'd say that it's pretty great.