Yeah, but how you deal with it is where you can criticise.
For example, an elderly guy I know lost 2 children when younger. Naturally he suffered from depression, but he never moaned, got on with life the best he could despite the way he was feeling. Only recently did people find out that he was on medication for years and had thought about suicide.
And then you have Stan "have I mentioned I'm depressed" Collymore. Constantly banging on about it, not in a raising awareness way but in a "i want sympathy" way. Yes it is sad that he suffers, but from what I understand he has had no traumatic life event and is probably quite wealthy. He doesn't have half as much to deal with as most people in life but constantly wants sympathy. Posting on twitter "its 4am and I cant sleep for no reason" - the reaction he got was just abuse, so much abuse because when you are a wealthy man who doesn't have a job to get up for in the morning (he was on the radio in the evening) it is not the end of the world.
So yes Roy's comment is wrong, but it doesnt mean that you cant criticise people in privileged positions who fail to recognise this or deal with in a way like SC. There seems to be a perception that you cant ever criticise a depression sufferers actions.