Why is 1302-1340 so painstakingly long?

A single round of weekly content will get you to 1370 as a fresh t3. Challenge Abyss/Challenge Guardian, your anguished isle chest for 50 leaps, guild tokens for many leaps, and pirate coins for shard bags.

technically if they are a new player they will be able to do the express and will get all they need from playing the game naturally to hit 1370+.

theres a reason we have so many 1370 players right now and its not because its difficult or slow to hone early t3.