For a lefty? Maybe. For a righty? I disagree. You can get caught by adrenaline and not remember whether safety is up or down, but with an 870 it is a simple push in. You have to adjust your grip more to disengage the safety on a Mossberg 500 than with a Remington 870
I am a lefty, but since most of the time I use a handgun with no manual safety (my 3 are LCP, SP101, and XDm) I prefer to have a safety that I can easily see on my long guns.
Good point orphaned on the barrel change kit.