True though I would put this very much in the "feature, not a bug" bucket. These tools are for people who have worked with the original hardware and want a very faithful emulation, including the look and feel. In the digital world with a modern PC there's not much purpose of a channel strip plugin in the first place, so the only people using one are doing so with intention.
It's a bit like saying that manual transmission cars could be controlled more easily if they were automatic transmission; it's completely true, but if you're buying a manual you want that experience.
Pro-Q is a great example of a digital-first tool (the automatic transmission equivalent), with lots of great visual feedback and a lot of thought put into a mouse+kb workflow. All of Fabfilter's stuff is like this actually, though sometimes to its detriment; the Fabfilter automation and LFO system feels very different from basically every other plugin. It's actually a more efficient workflow when you get used to it, but due to how different it is from everything else most people I talk to dislike it unless they've really bought into the Fabfilter suite.
Which kind of goes back to the original point: VSTs use knobs because it's what people are used to, and using something different might be a negative even if it's better!
Sure it mismatches the GUI, but it gives users the option when they don't want to do a click/drag for freq, then gain, then freq, then gain, then Q. You know?
That tediousness is what keeps me from using the SSL channel strip altogether.
Re: channel strip plugins: The advantage to using them in DAWs is speed and economy. Having everything in one window (ala the Scheps Omni Channel) saves me a lot of clicks vs. when I have multiple plugins in different slots.
I do absolutely everything in the box with a laptop keyboard and track pad. My primary motive is being quick and precise, and the less plugin window management I have to do the better. The channel strip keeps the tools compact and my movements minimal.
Related, I suppose this is why they needed a third-party to revamp Absynth.
This is a dark day for plugin junkies. It really makes me nervous about the rest of the industry because NI had all the appearances of a successful company. I mean, they weren't updating Battery for a really long time, but I always assumed something would eventually happen with it. Maybe the Absynth reveal was a much grimmer peak into their operation than I'd like it to be.
What third party? Do you mean Brian Clevinger, Absynth's original designer?