The cost for Gripen is not correct, because that was not flyaway cost but most likely the system cost. From competitions like in Denmark, the Netherlands, it is known that the Gripen NG was offered for a flyaway cost of $45 millions, from Brazil it was reported around $50 millions.
The article also took the system cost we paid for Mig 29Ks and translated it to the cost of the Mig 35, although AESA radar, TVC and additional changes on the airframe will increase the costs obviously, so not every figure they took is correct. More important is that even they say, that the L1 is not the one with the lowest unit costs, but the cheapest that fulfills the requirements and included costs for ToT as well.
The first half of the analysis is very interesting, when it's about the requirements of IAF and the roles that MMRCAs are likely to do, especially in regard to China. But when they start talking about the capabilities of each fighter it gets strange, with the conclusion clearly in favour for the US fighters.
From the Facebook site of the author:
That should explain it I guess.
Also when you read the report it looks like the specs they took for the fighters are at least 2, or 3 years old, while the last part even includes a note to the article of Air Commodore (retired) Jasjit Singh, that came up at the end of last year, which makes it kind of confusing. It's good to read if you are interested in the MMRCA competition, but is not in all points a reliable source.