Sir,
Just like every Indian fanboy you seemed not be ready to accept the fact.
Su-30 MKi is a beautiful machine. Indeed an excellent piece of engineering ( I am myself electrical engineer and i know how to admire the technical aspect of any thing) from a country that build it's military might on totalitarian and forced labor work force. We didn't expect the Russians to come up with such a good plane, i am sure USA too was surprised.
Now back to topic, the Su-30MKI was seen at red flag for aerial combat tactics. The exercise was not about full scale mock war, but air-air and the Americans wanted to see the MKI's close combat performance which indeed was impressive.
Now the fact is that if the MKI was ever at war with USAF in real time, the american f-16s or F-15s having shorter radars wouldn't matter because the AWACs would be tracking and communicating to locate and target Su-30. The MKIs would be shot before they would even get airborne. When you say Su-30 didn't use the radar, the concept was not electronic warfare. That is done by AWACs and AEWACs. the reality would be very different. You don't need radar to evaluate close combat maneuvers, which was the point of red flag.
That's why many in USA believe if the Cobra Maneuvers by Su-30 are of any use or not. Why would The Soviet test pilot Viktor Pugachyov show off Cobra in 1989, if they had intended the Su-30 to be a long range killer? That was to show if a chasing fighter could be shaken lose off the MKIs tail. Which means the chances of interception at close range are quite large.
In case of Pakistan, Pakistan is buying AWACs for a reason. As the ACM recently told that AWACs would be used to detect the type, vector and range of the IAF aircraft before they enter border so that the shorter range mirage/f-16s/f7 are able to scramble accordingly. That's it. Simple. Plus AN-TPS77 radars in service are longer range than SU-30 anyway. Even if the MKIs come for offensive action, they would be tracked long before the Su-30 tracks anything inside Pakistan. Couple that with AWACs and the Chinese KJ-200, the PAF would have ample opportunity to take evasive/defensive actions.