I'm not sure I'd consider what we saw in Skyrim to really be "the Blades." Two people do not an entire group/organization make. (Assuming here you don't toss a few followers to the Blades...but even then I think you can only recruit three at max? So that makes five, with three probably taking a lot of direction and instruction from the first two.) I see it more as Delphine and Esbern and their own opinions, habits, and what they think about the Blades and their purpose than I do the traditional Blades that we saw in Morrowind, etc.
I'm still pretty cool with the Blades as a group. Esbern's all right too, if a bit paranoid (but understandably so). Delphine...erg. I can see why she is the way she is, but I can't really stand her. My character left after discovering Sky Haven Temple with them and hasn't bothered to come back--mostly because of the way Delphine was acting during that quest. (Rude to Esbern, rude to my character, and ranting on about how terrible the Greybeards are, apparently oblivious to the fact that my character's quite fond of them and oh no you didn't.)
When given the option in later quests to consult with either Esbern or the Greybeards/Paarthurnax, I've picked the Greybeards every time. I suspect the next time I see Delphine will be during "Season Unending," and that's going to go just as poorly.

And ensure that my character most definitely never goes back to Sky Haven Temple.