It was an SU 24 which is an equally old plane. The 34 is heavily armored, slower, but has pilot "comfort" over survivability. Had and F16 come up on a SU 34 it would have been pretty much the same same.
Ill bet we will deploy newer ASSM cruise missiles and heavier packing drones . Fast just doesnt do it anymore especially when missiles can woop along at hypersonic speeds. ASSM's use a combination of 4 onboard "steering" and target acquisition systems, not just GPS
Why endanger pilots when we dont have to. Russia is still about 25 years behind despite their "catch up" of the last decade.