Is this a quote concerning MLB? If so then I would agree. However, if we're talking rec, TB, HS, and college softball, I must disagree. Many more errors occur in SB because it is a much faster game. I would imagine OBP to AVG ratio is noticably higher in SB.
The further up the line you go, the more that softball is like MLB, imo.
In 2013, Tennessee was the best-hitting team in the SEC. Tennessee struck out 84 times in 611 at-bats in SEC games. Keilani Ricketts struck out 131 times in 511 career at-bats at OU. Lauren Chamberlain has struck out 64 in 421.
The fielding PCT in SEC games for all teams was .964. In MLB, it's around .985, which is better, but not so much so that putting the ball in play becomes a leading indicator of a team's offensive success.
I do think that SO is a significant stat, and players who strike out a ton probably have some mechanical issues or pitch-selection issues that could be addressed. So I wouldn't say that put-in-play PCT is meaningless, but I think that it's overrated.