Fair enough … but there are renters out there for whom that doesn't work and landlords for whom a little bit of extra effort does make a difference. If what you do works for you, that's great. Maybe you just present exceptionally well without making the extra effort.
But that's no reason to slam something that works for other people. It's a tactic that works for tenants and landlords (and, yes, I too have been on both sides of that fence).
Like I said, if it doesn't do your chances any harm and it might do them some good, why not make a little bit of extra effort? Just making an effort – rather than feeling 'entitled' – sets you apart from the crowd these days.