These weren't rule changes, though...just people learning to exploit areas within the presently constructed rules. The DH was not a tactical shift by players or teams; it was baseball saying, these pitchers aren't good at hitting anymore. Let's not make them do it.
I don't like it in the same way I don't like rules designed for the sole purpose of increasing scoring in other sports. Rule changes should come about because it's become clear over time they don't work as intended, or because they just don't make sense anymore, not just because you want a basketball team scoring 110 instead of 85. Those kind of rule changes hurt the sport, IMO. You can argue the DH was an instance of a rule change because making the pitcher hit didn't make sense anymore, but we'll just have to disagree on that.