You simply can't make it any better with the small size and low resolution of the current LCD screen. They would need to put in a larger LCD screen with much higher resolution to be able to technically fit the layout and get the clarity of what the plug-ins look like.You are asking for something that is simply not technically possible.
I'll also disagree in that I take it from a different perspective and for me the templates are VERY immediate, by focusing on putting your hands on the knobs, versus trying to treat it like a VST-plugin with the GUI. Using the Origin to replace the elegant visual UI's of their VST plugin products is not the main goal of what Origin is designed to do, and I would go as far to say in that it's not even one of it's basic goals.
The way I look at it is: one, if not the main goal behind Origin's layout and design is to give you "back" the instant hands-on control of hardware already mapped out for you, at the same time sounding as good, if not better than the plug-ins emulating the old analog synths they cover. It doesn't make sense to try and compare the Origin against the software products. Completely different approach to working with the instruments. It's designed for you to spend more time playing and being "hands-on" versus navigating the GUI with a knob and arrow keys. Yes, the GUI is vital for using it's more modular capabilities, which I think the current interface does very well when using it this way. But again, it's goal is not to be a replacement for working with it like a plug-in with a full feature rich GUI.
Compare the Origin to any other hardware ONLY synth on the market today and tell me one that has a better GUI than what Origin gives you today. Having spent many years programming on countless of different hardware and software synths known for their well thought UI designs (EPS/ESQ-1, SY77, K2000/K2500, Reaktor) Origin has been what I consider the perfect blend between "analog" style hands-on control (and sound!) combined with deep visual feedback of what's going on inside and navigating the core set of features through a nice colorful UI. It took me but a few hours to instantly whip up emulations of old analog synths from my past and easily find my way around the main areas of the synth. If you spend time learning all the areas, you'll see it's actually not that difficult to get around, even in the templates. There's not much to they synth really. All of the main "sections" are easily accessed by their dedicated button/page, with very little nesting beyond those main pages.
You ever program on a Yamaha TX81Z from scratch? Or how about an original Kawai K5 Additive Synth? THOSE are what I consider the hallmark of counter-intuitive synths