Not sure it explains all the difference since we're comparing spotlights and strip lights....this comparison is akin to comparing T5 and halide.
But most of the confusion here seems like it is either conflating the different models of light fixtures or disregarding/underestimating the differences between them – which is mostly the lenses.
Stronger lenses put the same number of photons into a smaller space.
Imaging a 10 watt LED suspended 12" over a tank of water that we test with all these different lenses:
These charts are based on the math, not actual readings, in case that's not clear.
Just trying to convey the idea of why LED's with 60º lenses or 30º lenses are
vey different in performance...
especially in intensity...from fixtures with "plain" 120º lenses, or even 90º lenses.
The plain Current Orbit would be like the LED at the far-left of those curves, so its watts are the most spread out, covering a whopping 48" diameter area of 1800+ square inches.
The Orbit IC (and Photon V2 I think) has 90º lenses, so its watts are not nearly as spread out, only having to cover a 24" diameter area of 450+ square inches.
My DIY LED uses 30º lenses (off the charts

), so it's watts are the least spread out, only covering less than a 10" diameter area of less than 80 square inches.
Intensity = light ÷ surface area
With coverage areas of <80 vs 450 vs 1800 square inches, it's easy to see why the different fixtures mentioned perform VERY differently even if some stats are similar.
LED strips, much like T5's, tend to "unpack" that hot spot that's typical of spotlights, so how this intensity is applied in one model vs the other is another big factor in final performance.
Hence why you see ATI offer T5 fixtures allowing up to 8+ tubes at one, and why Current offers multiple strips in one pack. And why way back when I was using simple LED strips (12 watts, 1-watt LED's, no lenses), I used them four at a time in a custom frame, and took their spread into account when I planned the mounting height. (Meaning I didn't want to be blinded by it, so I put the fixture right on the tank-top...this was pre-light meter for me so I was heavily winging it at the time. Still the early days of LED's.

)
200 watts over 72" is a beast?
I have 260 watts over 48" with my Photon V2.
Just to simplify, compare 60º lenses like in those old Orbit Pro's (not IC) and 90º lenses like what I think your Photon V2 has on those charts above. Each emitter in the Pro is more concentrated and each emitter in the Photon is more spread out – to a significant degree; there are almost double the number of square inches under a 90º lens as under a 60º.
It would take more watts (or more stacked LED's) for the 90º lenses to achieve the same intensity as 60º lenses. The old Orbit Pro's were stout, but they were expensive as heck too.
My lights with the 30º lenses are the real monsters though. ;Mask Don't let the 39 watts fool ya!

(Sidenote: No, seriously, don't let your lights fool you like my DIY did me back in the day...switching lights can be very painful. ;Hurting;Dead Use a light meter.
Do not guess at your lights' intensity levels.)