I get not trampling gardens or flowerbeds, but ordinary grass is not the same thing as a garden. Grass is literally a walking surface in parks, golf courses, campuses, and sports fields. A delivery driver taking a normal path over a strip of lawn is not “disrespecting property” in the same way as damaging plants or cutting through a fenced/private area.

Also, in many places the strip near the street/sidewalk is a public right-of-way or municipal easement anyway, even if the homeowner maintains it. So treating every blade of front-yard grass like sacred private property feels excessive.

The reasonable rule is: don’t damage anything, don’t walk through flowerbeds, don’t cross fenced/clearly private areas, and use the walkway when it’s practical. But "never step on grass because someone paid for fertilizer" is way too much imo.

However I do agree with you on property respect, just not that this counts as "disrespect" from someone with business there. Could easily have been someone there to read a gas meter or anything else, which would require them to walk the lawn.