TB is meant to be long term, not just a "now" thing.
The Rancor has been around a long time. It's at the point where 1-2 Toons can solo it. Whereas last year, solo'ing it with a squad was a big deal.
TB might be fully Auto'd by many Guilds in early 2019...based on the number of OP Toons frequently released in a short period of time. As for ships, I'm sure I get a few to 7* by then, only have 3 at 5* at the moment.
I haven't been playing for that long, but the pattern of "what used to be awesome and hard to get", will be rendered "mediocre and fairly easy to get".
I heard Vader and his TIE was once a very long and hard farm.