Yes, but it’s never going to go back to that. Or at least I don’t believe they’ll return to its original design.
They’ve turned the subtlety spec into the D&D shadowdancer advanced class, lacking the hide-in-plain-sight. It becomes an excuse to use abilities outside of stealth. Although admittedly it would ruin the free cheap shot uses in PVP scenarios that make it really nice, but outside of that it has no use because backstab is nerfed to make shadowstrike do the same thing.
Yes, they could have done something like make it a 6-12 second cool down where you can pop into the shadows and use a stealth ability every so often. But if they got rid of it and did something different I wouldn’t be too bothered.