Plant breeding has brought many adverse emergent properties. It involves selecting for a few alleles while having no way to prevent unintended alleles from being bred in. Introduction of invasive species have permanently degraded many ecosystems. The current method of mass-farming agriculture spreads purpose-bred plants around the world. The current method of agriculture is also high risk.

You can't speak of an "evolutionary scale" when there are literally intelligent designers at work, carefully cross-breeding each generation for optimal results.

It's a slower process than direct genetic manipulation, sure, but "evolutionary" implies thousands or even millions of years when the reality is closer to decades.