If it was a LLM Generated article trained on typical Indian media articles, there would be 15 quotes from "Air Marshals" about how the stealth of the J-20 has an inferior radar signature to even the Su-30MKI
Rafale with Meteor can wipe out J-10 from Pakistan and China
Chinese copies of Su-27/30 are inferior copies since India has the original Russian specification
etc. etc.
These are all real claims from actual Indian media, not just a blogger. He actually doesn't make those kinds of outrageous claims. He is absolutely correct that IAF was technologically superior than PLAAF prior to the 90's. I'm not saying this is a good article (for example he totally ignores the far greater number of AWACS and EW aircraft of PLAAF), but I think an AI article would actually be much much worse.
Very debatable how superior IAF was vs PLAAF in 1980's.
IAF had ~300 Mig-21s (air superiority), ~40 Mig-23MF (air superiority), ~90 Mig-23BNs (fighter bombers), ~250 Hawker Hunters (1st gen 1940's jets), and had just received 36 Mirage-2000s, their first order of 4th gen jets in history, in 1985.
Basically ~400 3rd gen or better air superiority aircraft.
Su-30 MKI was still 15 years away.
In 1985 China had something like 2000+ J-7s and 300+ J-8s. Unlike Indian Mig-21s which were vintage Soviet that they couldn't even maintain themselves, China had fully mastered J-7 and even built the J-7E redesign in 1987.
So India in 1980's still had no chance. They didn't have a qualitative edge and had a massive quantitative disadvantage.
In the 90's, China imported S-300s (1993) and Su-27s (1992) before India imported Su-30 MKI (2002).
So there was never a time when India could beat China in the air.