I mean, yes, it kind of does. Combine harvesters cut and flatten everything in a field, and kill any animals unfortunate enough to be in their path, which isn't great for biodiversity.
In modern industrial agriculture, pesticides and poisons and traps kill other plants and animals anyway, so it's not as relevant.
If you want biodiversity in a ryegrass field, the way this meme shows, you need perennial companion plants and an insect and small animal ecology. So you have to use less destructive forms of harvesting to avoid killing everything in the field.
I don't know if there are less destructive mechanical harvesting processes available, but showing workers with scythes is a good shorthand to get the point across.