As a dedicated X-wing player, I have to say that literally everything you just said is 100% wrong.
Now if you had said this last July? It would largely have truth to it (though triple defenders are pretty iconic for nerds of a certain stripe). But currently the strongest ship in the game is probably the Delta 7 Aethersprite, aka the Jedi starfighter. Say what you will about the prequels, it is a pretty iconic ship from it. Same with the N-1, also another high performer.
Also Darth Vader and Soontir Fel in his TIE Interceptor are arguably the best pilots in the game, bar none. And if you want to tell me Darth Vader and the TIE Interceptor aren’t classic, then I am going to call you certifiable.
We also just had, prior to the last points update, 6 months where the best squad, by far, was Rebel Beef. Which always had X-wings and B-wings. Usually had Princess Leia in a U-wing. And occasionally had Y-wings.
Han in the Falcon and Luke were also another frequent, though more variance prone, list with good success.
A classic TIE swarm is still one of the best performing lists in the game. It sees less play than its performance simply because it has been a staple since game inception. Boredom is the only reason it isn’t dominating.
Boba Fett? Still very good. Tough to use to the full, but Boba and friend (often either the Mandalorian Fang fighter or Shadows of the Empire Starviper) has taken a few high end events.
No, the game is in a fantastic spot. Almost every ship is at least competitively viable, sorry TIE Agressor, but nobody really cares about you. Premier events have been won by a bunch of squads, and the points balancing allows them to mix up the meta or to nerf unfun combos.
As for releases they have mostly been updating old ships to 2.0 with proper new releases, so new players don’t have to hunt out of stock items and get conversion kits. And releasing prequel/ sequel ships. They just releases the Y-wing from the prequels, and the geonosian fighter. Sure the OT factions haven’t had a new ship in a year now, but they have gotten new options, and we are getting a narrative play kit with additional pilots and crew soon. Given how many more ships they have than the prequel (new to 2.0) and sequel (split from Rebels and Empire with 2.0) factions, it makes sense to focus on new content for them rather than dig up continually more obscure EU ships.