Shash,
I think you're bang-on, here.
There was a used DenseLight product for sale recently--on Ebay--where the seller noted it worked fine but was not suitable for their needs as the precision faltered (drifted?) under long-term, continuous use. Put some BB Photonics know-how in there and problem solved.
Shash: "And while we are comtemplating, it's also possible that the Denselight SLED is moving up in class by incorporating BBPhotonics laser stabilization tech for indium phosphide based wafers which Denselight produces in house. That might also be why Luxmux decided on the DL product as well. Multiple extremely stable lasers in an ultra close proximity application"