They had newer systems than Venezuela.
SEAD was conducted by both ground and air assets, Israel only has about 30 F-35’s and Iran is massive.
The F-35 is “invisible” ;)
Iran’s air defenses were either obliterated or rendered useless, hence how Israel was flying slow ass drones at low altitude above their capital on day 3.
The US is even more capable when it comes to SEAD.
The gap between the west and everyone else when it comes to both military technology and doctrine is massive.