@MangaField
I get what you're saying, honestly. I started reading Berserk in 2003, so it's been 15 years and I've had the same thoughts as you. It's a deeply flawed work that meanders needlessly through boring arcs and I've been thinking for a long time that Miura hates this story and all its fans. Sometimes it feels like he's just being a jerk on purpose, with the long hiatuses and painful cliffhangers.
I got really irritated when, after all this time of Casca being addle-brained, the instant she's brought back we suddenly have to visit Griffith instead of seeing the reunion that we've waited for, literally, for over a decade. Now, any actual fan of the series knew damn well that Casca and Guts wouldn't have a "Hollywood" reunion, but that abrupt change in location felt, to me, like Miura being a complete dick on purpose.
He's tried to write other stories, and every one of them fails. Now he's trying again, and it will probably fail. His fans only want Berserk and I think he's sick of it. I also think that his attitude towards Berserk has been on display for a long time. It's not nearly as interesting as it used to be, and reading it now feels more like a habit than anything exciting.
And you're right that you've got a more objective perspective than us long-timers, but I'm in complete agreement with you, too. Berserk ain't what it used to be.