If you were a Merlin exec reading many forums at the moment (although you'd have more important things to be doing I'm sure), you'd probably be quite confused with all the negativity around.
But a lot of it seems to centre around the fact that it has an SW tag but is clearly a small woodie with nothing remarkable about it, it's theme (where I've seen more negative comments than anything else), the "world class" claims and other marketing hype making it out to be some sort of world beater and the anticlimax of realising that those days of Towers building real world class coasters has gone and went out with the 90's.
My own criticisms are the ruining of the KC pathway and final turn of the Rapids. I know Towers like building fences so a couple more here would be nice just to keep KC visually secluded from the impact of the new ride area.
But I think most would agree this doesn't look a bad coaster at all. I think it looks quite good. It looks like a good quality build, with some of the best thought put in to the landscape and theming in years! No flooded square concrete pits or shipping container shops here.
I think there's a missed opportunity to really finish off the theme of Mutiny Bay nicely, but this could still look OK in the area as long as the coaster theme doesnt spill out from the ride area.
It's also filling 2 gaps in Towers line up, namely a wooden coaster and another family coaster. I have no doubt it'll be enjoyable and popular and will give the park a much needed boost. This will be a good and worthwhile attraction.
I think when you see the ride for what it is, you can appreciate it. But it can't be compared to the real secret weapon show stoppers of the past and Merlin have made it abundantly clear that they have no ambitions for the park to return to that.