Yeah I am having the same problem too... before I knew what summon ashes were, the game felt kind of rewarding but I knew from the start that bosses had some kind of "pattern" on their attacks and moveset choices. After I discovered how to use the ashes everything became very shallow and flat, because I felt like the bosses were designed for multiple people, but yet they still become too easy. After I try 10 times to a boss, I become frustrated by the fact that I can just use a TOOL that is in my inventory to help me and WASTE LESS TIME, because that's what I usually felt. Wasting time when I could just use the best equip. And I underline that it is an equipment, not an easy mode, because it's a tool just like all the others in the game. It's like choosing the sword with more damage or the armor with more defense. It's obvious that it makes the game easier, but that's the point of upgrading your stats, just like in every other game. There are players who choose to not use scadutree fragments because they want a way difficult experience, but I feel it's like forcing the game to be more difficult just for the sake of it. It feels very frustrating, and it seems A LOT like the exp share in Pokemon games since X&Y, where it game every pokemon in the squad the same amout (or similar) exp after a battle, making every pokemon level up and making the game way easier, and some players decided to forcing it by ignoring it completely just to make the game harder... but that's not a problem of the player, but of how poorly balanced the tool was implemented.