I think [REDACTED] fleets are somewhat buffed nowadays compared with 0.9.1a, but they're still pretty manageable.
Back in 0.9.1a my endgame fleet could handle 2-3 full Ordos at once for vanilla; with mods it could handle basically anything until PPT ran out (Drovers with officers and hardened subsystems), so roughly 6 or 7 Ordos fleets.
Currently for 0.95a the vanilla fleet's working on a single Ordos fleet, although at this point it could probably handle 2 Ordos fleets at once. But I think a lot of what players may not account for is that with 0.95a, there are a lot of gameplay changes, so it takes a lot of tinkering and experimentation to figure out what's the new optimum fleet. So it seems "harder" simply because the old fleet compositions and strategies no longer work as well as they did in 0.9.1a when everything was already figured out.
Keep in mind that you the player also has new toys to play with vs [REDACTED] fleets. For example, solar shielding also means shields take less energy damage now. So they're almost mandatory for most [REDACTED]-capable fleets. Also, despite their status as an endgame fight, I would actually recommend doing the [SUPER REDACTED] fights before [REDACTED], because those fights can give you unique (but limited amounts of) weapons which can help a lot versus [REDACTED]. So they make farming [REDACTED] for cores a lot more straightforward.
There are a whole range of different fleet compositions to handle [REDACTED] fleets now. They probably existed in 0.9.1a as well, but they were probably just covered up by Drover spam. Just off the top of my head:
1. I usually use Aurora or Doom as flagship (fast, heavy burst damage, to finish off ships quickly then back off and vent).
2. The main "line" can be many things. Auroras, Champions, Furies, Falcon P's (Sabot spam), when I have time I actually want to mess around with Dominators a bit but just haven't had time. Capital ships like Radiants, Odysseys, Paragons, Onslaughts, etc. also work.
3. A couple of fast ships to help capture objectives at the beginning. Hyperion, Medusa, Fury, etc. Generally I don't find it useful to try to hold on to objectives (when you park your own ships over them to take the ships which the enemy fleet sends to capture them, yes you split up their fleet, but you're splitting up your own fleet as well), but it's helpful to get several at the beginning to bump your DP up to 55% of battle size (getting the full 60% can be difficult, so 55% is what I plan for), then just focus on killing the enemy fleet as quickly as possible without worrying about objectives.
For the Zig, yes CR recovery is problematic; however what you can do is fight two (or more) fleets at once rather than taking them separately. This allows you to use up all of your PPT, thus decreasing the supplies and time you need to recover. Also, it helps with your battle size bonus to XP, which goes up to +500%. Since battles are limited by battle size anyway, it's not like you're actually fighting the whole fleet at once; rather, they basically get "funneled" into an initial deployment fleet, followed by a trickle as you kill their ships.