Wouldn't cry about the loss of bloodbath. It' effectivness decreases with ilvl and would decrease with the new damage calculation for tanks in stormblood even faster, while every other def. CDs effectivness stays the same or even rises with higher content.

E.g. back in Gordias a STR War could heal almost 100% of their max hp himself, now you regenerate lets say 50% of your max. HP, at ilvl 290 in Stormblood it might be only 30%, since your HP doubled and your AP just got +10% to what we have now.
At the end of SB maybe 10% or less?