I think they overall handled it pretty sloppy. We already spent a whole season on every character, in Daredevil's case 2 seasons, and yet it takes at least 2 hours for the heroes to finally get together. I think it should have been action and urgency right from the very first Episode. I am not saying every episode needed to be nonstop action. But why is there still so much buildup required, after we already sat through 5 seasons of buildup? Why give everybody their own angle? Felt really farfetched how pretty much all 4 of them appeared at the same time, at the same building. Some call it fate, I call it contrived writing.
You have Claire right there, who knows each and every one of them. She's the Coulson of the Netflix shows. She's the connective tissue. Episode 1 could have maybe started with Danny getting the **** beaten out of him, and he finds his way back to Claire. Luke, fresh out of jail, is of course at her place and decides to land him a hand. Avoiding that whole white privilege bs, because Luke beat up his fair share of thugs. And because Claire knows that the Hand is involved, she decides to finally to contact Matt, after 2 seasons of basically forgetting his existence.
That could have been all in the very first Episode. And now we have 80 minutes, that could be wisely spent on actually developing the villains. There's so much more I would streamline in the show and use the time on actually important things. Seriously, a well written script would have probably only needed 4 Episodes. After 5 Seasons of buildup, I would have been fine with the Defenders basically having the length of an extra long movie. Anything from 2-3 hours would have been fine.