Good that you say that.
If I am allowed to blow holes in the article, then...
As you've pointed out, Nirbhay is not ready yet. And the weapon system is different from the SCALP, since it's not as stealthy, even though SCALP is half to a third in range. SCALP is to the American JASSM as the Nirbhay is to the Tomahawk, so both serve different purposes. Nirbhay, or its definitive variant LRLACM, can be integrated on the Rafale.
Astra Mk1 is in no way comparable with Meteor. When it comes to range, the Meteor has 2x the range performance, maybe more, but definitely way more than the AIM-120D. Even the Astra Mk2 won't be its equivalent. Its only equivalent will be whatever comes out of the SFDR program, and that's years away.
Brahmos-M can be integrated on the Rafale. As can all other types of bombs and missiles that we use. The India-specific enhancements will come with the Litening G4 pod and SPICE from 2022 onwards. DRDO-developed quad-pack ejectors that can carry a variety of new generation bombs, like SAAW, and there's also the HSLD. An Israeli HMDS (Targo 2) and towed decoy (X-Guard) are also going to be part of the aircraft. So it's definitely not a closed architecture. The French will allow the integration of any weapon we want, including the ones coming up. Rafale uses the MIL-STD-1553B and STANAG 3910. The 3910 augments the low speed 1553B data bus with a high speed 20Mbps data bus and the mission computer called MDPU is built according to NATO standards.
I don't know how he got $400M for Rafale versus $60M for Mk1A, even though he clearly says the deal was $8B for 36 jets. Although the correct figure is $9B.
Lastly, believe it or not, the French have officially advertised the aircraft with both supercruise (with external payload) and LO/VLO capabilities. It can supercruise at mach 1.4 with 1 or 2 drop tanks and AAMs. Its passive localisation capabilties are accurate up to 0.1deg at 200Km, enough to launch BVR missiles without using radar or other sensors. SPECTRA will automatically engage any threat using the all-aspect MICA IR that comes within 15-20Km of the aircraft, even at the Rafale's six, paving the way for the introduction of anti-missile capabilities. And it has been officially revealed to have a frontal RCS similar to that of a sparrow.
So it's not a stretch to say the Rafale brings in true asymmetric capabilties.