You do realise that Sawyer is not a fan of Baldur's Gate 2. Right?
Here's Josh debunking that very idea: http://new.spring.me/#!/JESawyer/q/476555580379526832?utm_source=social
Being critical is very necessary to being a designer. It always seems weird to me that some don't understand hating parts of things you love.
The current compromises for attributes, class abilities, the item stash, health/stamina are the result of lots of very intense forum discussions and iterations, and their fundamental goal are very unlikely to change.
In particular, Josh seems very attached to the attributes, attribute-based dialogue options, and health/stamina, which aspire to goals he considers very important and are informed by games he loves a lot. In addition, Stealth, slot-based inventory, attribute dialogue, DT, and health/stamina seem to have some very big fans. You'd need a better reason than just your own happiness, since your happiness would have to come at the expense of some one else's happiness.
During the KickStarter, they said they were willing to make changes to the original game systems, specified how they were interested in changing them, and outlined their design philosophies many times. But also the project was pitched as being Obsidian made, designed by Josh Sawyer, Chris Avelone, and Tim Cain. Many backers would be disappointed if the systems weren't Obsidian-ish. Honestly, compared to other spiritual successor KickStarters, only Wasteland 2 doesn't make more radical changes than this.