Should 343 really be bringing in new species/enemy

Halo infinite totally dropped the forruners and there story ark after the mess.they created in halo 5 and yet hear they are in halo infinite introduce a new species and enemy (the endless) i really domt.think.343 shpuld be doing.this considering there lack of ability to bring the promethians into there games as well balanced enemies to fight and also they totally abandoned there story ark leaving ot incomplete and just dropped after building on it in halo 4 amd 5 i hated fightimg the promethians as i thought the combat against them wasnt the best but it annoys me that they were just completely dropped from halo infinite… along with most the other characters from halo 4 and 5