It's pretty logical dude. Implementing difficulty settings is not trivial work. The more options, the more work, playtesting, etc. To give you an idea: how many indies do you know that have difficulty settings? I know of Cosmic Star Heroine and Fell Seal (and they're both turn-based, hmm), but most indies I played lately sure don't have it; Hollow Knight, Salt and Sanctuary, La-Mulana, Monster Boy, Indivisible, Sonic Mania, CrossCode, Kingdom Come, A Plague Tale.... hell even Cuphead (which has a training mode but it doesn't let you progress) don't have easy modes.
So clearly it's not trivial dev work and I don't blame a dev for not wanting to invest resources to implement those when it's not the focus of their game. Cool if they want to and can afford it, but yeah.