No not anti in cricket. But they do experiment a lot before applying any change. In fact the Hundred and 5 ball over has been running as an experiment.

FYI, 20 overs format has only come in 2004, and reduced the time of one dayers (50 overs games) by 60%. Although Cricket is also about preserving the tradition, we still play test Cricket and I suppose we'll never leave 5 day games entirely, also not the one dayers.