Nobody takes Improved Blood Presence on a streamlined tree where it's possible to pick up pretty much everything needed and still have points spare? I'm supposing you spend those points in Spell Deflection then. In Live, Blood DKs use UP constantly and in offensive comps I expect they still will, however in 3.1 when you play defensively 10% + healing, especially considering the ridiculous amount DStrike self-heals for too, means you ARE going to outmana the opposition regardless of whether you can't get off abilities as quickly with 1.5 sec GCD.
Incidentally, with SDoom as it is and HStrike now snaring it's remarkably easy to unload your Runes and RP as Blood without running into rotation cross-overs - UP is no longer necessary, it's just nice for burst. However, if you're going to spec Blood I would be seriously suggest playing a defensive comp rather than offensive.
And even then let's assume Imp BPres isn't used because you want to play offensively - ok, wow, that 12k heal became 10.8k...I guess that balances it just fine!
Sorry, but it doesn't matter how much buttering up you do 10k+ heals from a main damage nuke that is usable 3 times every 2 rotations is NOT ok. Lichborne having its miss chance removed and VB being increased to 2 minutes means nothing when you self heal for the same amount as a Holy Light 3 times every 20 seconds.
All those nerfs did was attempt to bring DKs back to ground but the Death Strike change has just made Blood ridiculous.
This is not ok.