Savage raiding in duty finder is always hard because you cannot progress as a group (each party resets progression), teamwork is non-existent as everyone worries about themselves, communication is usually horrible, conflicting strategies (Aka safe method with lower dps vs Parse method to get bigger dps numbers), people being impatient and leaving after a few wipes, people just being plain bad holding everyone back.

Savage raiding in a guild/premade where you eliminate all the above... it gets substantially easier.

Want it easier do not pug it, want to do hardcore mode run with randoms. Expect fights to take 5-10xs as long to clear using party finder. Not just savage but ex trials as well. The only savage that was not tuned well was Alexander 3 a the start of heavens ward since that they have been well designed in terms of difficulty.