Of course you can't extrapolate anything from the result of one chance encounter - though had the F-15's claimed victory you can be sure that Typhoon's knockers would be using it as evidence of something.....
Of course it proves nothing and doesn't even provide a reliable indicator.
But it's surely not too difficult to give some credit for the fact that a pilot on his 12 hour SIPT conversion to a brand new type (and I believe it was a pilot with very little A-A experience), which was itself at a very early clearance, had the necessary SA to avoid being bounced and then to turn the tables on his attackers. The 48th FW were impressed by his achievement!