"Same crappy implementation of stealth" = "wow rogue" = "AoC Assassin" = "squishy captain stabby from teh stelthz!"
Ops/Scoundrels even have a positional backstab equivalent ... two of them. It's a classic.
Assassin/Shadow stealth is actually a nice way to do it; stealth is there, but ... it's just "there"; there aren't any key class mechanics built around it (e.g. TA/UH, burst attack only available from stealth, etc). Don't feel like stealthing? Ok, so don't! Ditto mara/sent "stealth".
But ops/scoundrels? Tell me you haven't seen this exact crappy class structure before?
Nothing would tickle me more than to have HS/SF simply yanked from the game, and re-balancing done from there, otherwise all this crap never ends.