I wouldn't say that people are being 'difficult' - They're expressing a distaste for how it's being handled at the moment, and suggesting things that would make it more palatable, that's all. By far a bigger problem is the way that the dreams themselves are invasive, creepy and, if you don't choose the head-over-heels dialogue choices, downright rapey...
Well yes, and I doubt they are supposed to be anything but this. You have an alien worm in your head that is being held dormant by some other force, and that is trying to break through that force to eat your brain and turn you into a squid face, by playing on your deepest psyche and influencing you to use the powers that will bring you closer to the squid face state. Its not meant to be sunshine and rainbows, its actively trying to corrupt your character.
This reminds me of BG2 dreams, where Bhaal's essence in your character took on the visage of your greatest nemesis and tried to coerce you into eventually giving in and unleashing the Slayer.
... and you absolutely cannot, in any way, act or suggest that they weren't or that you didn't find them so. There's a huge dissonance there, and if they fix that in a good way, then my complaints about building the daisy will be much reduced.
That i can agree with, but i honestly dont know how it could be written, that the tadpole is corrupting your character, without your character falling for its brain shenanigans.
It's a fundamental (mis)conception that Larian has around role playing games and agency. They wouldnt even have non origin stories if people didn't complain, you would just be playing out their interactive novel.
I think custom Tav is done pretty well, and leagues better already than custom Godwoken. But you have to take some creative choices that will railroad player character in some way for story-telling purposes, and for them to have a more powerful effect. I.e. Morrowind dreams play on your previous established relationship with Dagoth Ur, BG2 on your ptsd from Irenicus, etc.
Edit: now that I think about it, it would be fun if the dream person’s appearance is eventually used on some npc that is supposed to be from our past. Either an ex-lover or a close friend, would have a stronger impact.