That "dated" information is still generally pretty good. Some things changed, but most things did not.
Phase 1:
There are not many P1 hSith teams of note. And some of the teams that do exist are either unstable and unreliable (Yodalicious), pull more important teams from elsewhere (Kevan), or require Traya to work well (First Order).
Realistically, there are two P1 teams of note. JTR and Embo hunters. Embo hunters has not changed since the bounty hunter reworks, so that "dated" information is as good now as it ever was, but as very few people actively pursued Embo, that basically leaves you with JTR. Ultimately, if you do not have enough JTR teams to take out P1 on their own, you're probably not ready for hSith.
There are multiple configurations. The best is JTR/BB-8/R2/3PO/Finn. However, an aspiring hSith guild probably isn't overflowing with 3POs. Scavenger Rey or Resistance Trooper are fine stopgaps who can still comfortable hit damage quotas.
Phase 2:
Use JTR. I say again, use JTR. You can comfortably clear P1 and P2 with nothing but JTR.
Whatever JTR teams you have left after P1, use them here. She's not as good here as in P1, but she's still solid, and this is the last phase where Resistance is good unless you have enough firepower to rip through Traya's sabers rapidly to topple her to death.
I emphasize this for a starting guild because while Sion isn't really a hard phase- I can almost guarantee you'll beat him, and pure smashface will do the job- he's a brick wall and you can easily run out of steam for later phases, the most embarrassing being to get through P4 Nihilus and then failing because all your zerg rush fodder was smashed against Sion.
There are tons of teams who get decent numbers here. Hunters, troopers, ewoks, Phoenix, First Order, Galactic Republic, Ackbar/Leia, Qi'ra scoundrels. Some of them come in handy, but if you can have JTR clear P1 and do the heavy lifting for P2, you are in a great place.
The usual star and probably the team who can pull down the best numbers is Jedi Knight Revan. And you'll probably want to use some Revans here. However, I'd suggest limiting that and saving some Kevans for P3.
Phase 3:
This is the phase that makes people hate hSith. There are three main strategies people use here. I recommend using them, but not relying on them.
The three main teams are Chex/Greedo mix style teams, Deathstorm, and the CLS loop. This is why people hate the Sith raid. Problem with these teams is time, stability, RNG. These are all good teams that can get good to absurd numbers, but they can be finicky to set up, unreliable, require multiple retries, and depend on a lot of luck. They're good teams, but they can be stressful, which can hurt morale and engagement long-term. Also, Nightsisters are essential to P4, so you don't want to spend too many of them here.
Chex/Greedo mix gets much easier once you get Chewie, but its damage ceiling is low enough that it can be hard to get by on Chex alone.
My advice is to focus most of your Kevans here. You can fight in a much more straightforward manner while still getting great numbers. Kill sabers. Topple Traya. Beat her up.
Phase 4:
Asajj led Nightsisters. There is no replacement. Kevan can get good numbers here, sure, but they're needed everywhere. Ultimately, you need Nightsisters to beat Nihilus. Once Nihilus is down, you can zerg the rest of the run. But you need Asajj led Nightsisters to get there.