Captures to me are like the "cheap" approach now when the manufacturer does not want to develop a proper component modeling system which is way more involved.
You are letting your biases control your thinking too much.
Component modeling is not the "proper" way to simulate an amp. It is the most simplistic "in the box thinking" approach to digital simulation, although it results in some complex models. That's actually a big part of the downside. There is a lot of complexity and interaction that needs to be modeled to accurately recreate a tube amp with all of its imperfect components. That means big models and big processing or lots of simplifications.
Capture technology is a different approach to get to the same results. In some ways it is significantly more efficient, in other ways less so.
If I want the sound of a certain amp model with the bass rolled back, mids cranked, and treble in the 6-7 range...
With another copy of the real amp, I roll the bass back, mids up, set treble at 6 and play. Then I listen, adjust the knobs as needed because they are not all identical, listen again and play on. Of course that is just the start if you want to record or send to the PA.
With a modeler, I pull up a model of as similar an amp as I can get, start with the knobs where I expect and then start playing, listening, and tweaking, often tweaking other parameters to get it to sound right.
With a capture device, I can find a capture of the amp model in question with the tone controls close to where I would set them. Play, listen, and tweak as needed. No the controls don't work exactly like the real amp, but if you start with a capture that is fairly close that doesn't matter and actually the EQ tends to work better. IME, it may take more time to find a good starting point capture, but after you do, it is much quicker to dial it in than with a modeler.
Finally, if I have the original amp I want to copy, I can capture it as is. Depending on the device, this can take some time and effort to do well, but not that much.
The tools and workflows are different, but the end result is effectively the same. And, if the end result sounds the same...