We can keep counting abilities all day if you want and that won't change the fact that legion's assassination rogue gives more importance to those 2-3 bleed abilities than it does to the poison related stuff.
Exsanguinate is a great talent, but funny enough... it's also removing value from envenom (this adds to my first point). And that's fine for a talent... if they manage to make better alternatives to that talent. Agonizing poison also removes value from envenom and alacrity is just boring across all specs as much as it does help the poison theme.
With the new talent our bleeds last in a matter of seconds, with garrote on CD we only get to refresh rupture, so while the fok spam can be nice (combined with the fok trait) for a few seconds... we become energy starved really fast after that.
With the more reliable blood sweat we used to have on early builds, it was common to have at least one bleed on all targets, so we had more energy to either keep spamming FoK or funnel damage into one target through envenom.
Let's remember that unless they change how offspecs deal with artifact weapons (mostly artifact power), we need to be competitive against blade flurry.
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Since we are talking about the fantasy behind the abilities... hemo does fall in the bleed category even if it's not a bleed. Just as envenom falls in the poison category even if it's not a poison.