I understand it and don't hate the core developers. Seg wit is a thoughtful solution, but not an elegant one. IMHO, it's just more spackle over the cracks and a further delay to increasing block size.
Good observation
In change management, the first question is not about if a change is good or bad, it is why must we make this change. It is always the motivation behind the change worth looking
It seems SegWit is invented to temporary circumvent the hard coded 1MB limitation of the block size, so that the traffic can still grow without trigger a fee event
So the next question will be: Why are we so fear of a fee event?
Jeff gave some answer here:
*Key observation: A Bitcoin Fee Event (see def. at top) is an Economic
Change Event.*
An Economic Change Event is a period of market chaos, where large changes
to prices and sets of economic actors occurs over a short time period.
A Fee Event is a notable Economic Change Event, where a realistic
projection forsees higher fee/KB on average, pricing some economic actors
(bitcoin projects and businesses) out of the system.
I don't think this so called "chaos" is convincing enough, so the next question: Who are these bitcoin projects and businesses, and is bitcoin's goal to benefit average people or serve these projects/businesses?
Although institutions have large capital and influence in the industry, I don't think bitcoin's purpose is to become banks' another payment network (Banks being the highest form of business, a business large enough will start to do banking)
In fact, businesses can always pass the fee cost to customer, and those customers are not fee sensitive (Statistics showed that majority of users come to bitcoin and use it for long term value store and high value international remittance, both are not very sensitive to fee and transaction frequency) So a higher fee will not affect business either. And large businesses can establish clearing channel to dramatically reduce the fee cost, this is a common practice in financial world, they don't need to change bitcoin architecture to do that
So I think the motivation behind the architecture change of bitcoin is still not enough convincing. Since no one have seen a fee event, it might not be the "chaos" that is predicted by Jeff, so people must see it with their own eyes to be convinced that it is a problem that really need to be solved. What if it is not a problem at all? Banks are still closed during weekends and holiday, is that a problem for our financial system?
Even a fee event negatively affect majority of the user experience, the way to future scaling should still follow Satoshi's vision as much as possible. Anyway this is his invention, no one except him have the right to change it to something totally different