Character backstory - Better Source DM or player?

[Jay R]

I'm sure it has its advantages, but the meatgrinder intro was initially presented (in part) as giving the party a reason to adventure together and I still haven't seen any reason why it'd help with that more than any other intro.

He didn't say that it would help "more than any other intro". The paragraph in which he mentioned the idea started by saying another idea works too. His only statement about the meatgrinder was, "A DM making a whole bunch of characters, then throwing them into a meatgrinder of a battle so that the survivors can become the true PCs can work for some games - there is at least one fairly legendary W40k TTRPG campaign that started this way." [Emphasis added.]

He didn't say it worked better than any other intro.
He included another intro that can work well.
He only claimed that the meatgrinder "can work for some games".

You've turned his simple true statement into a much stronger statement he didn't make, and are triumphantly declaring that the statement he didn't make is not true.

[He also dropped out of this discussion 13 days ago.]