n1, dificulty: public and squad should be two seperate dificulties public scaled to be around t4 fractal for a 5 man group (easier than t4 for a 10man group). After a public group is done they will get a popup to stay in squad so they can immidiately look to jump in the squad version (or maybe recruit a couple more ppl through other means if they arent at the 10man mark.
Squad would be around the t4cm dificulty for 5 man groups. 10man groups would have a much easier time and 5 man groups would have a more challenging time (think of it like fractals that you can bring 5 more friends to make it easier).
This does 2 things: One, it brings up the dificulty, its by all means not harder than a raid or even as hard but harder than what strikes are now which imo fails to accomplish its goal. Two, it automatically forms groups and gives the options to said groups to stick together for the harder version which is closer to raids.
n2, the way strikes are done: As WP said strikes are basically dungeon paths to lw's story mode, they change alot from the way you get to the boss to even the setting and dialogue. Anet heard us when we asked for bosses and instances to be reused as repeatable content but imo they could have just taken the lw instamce and cut out some lore parts and roadblocks to and after the boss and make whats left repeatable. FF14 does the same thing with trials and it works.
Thats a niche complain but it comes from the pov that this takes more resources than it would potentially need and as cool as it might be it certainly drains more resources and we might end up getting less and less of them over time because of it.