First, all these statements are completely wrong, First, Mig-21 bison at the moment in game can only bring 2 R-73 and 2 R-27T/R.
Second not only Bison pops 2 CM per pop(making it have 30 pops) and per type(making you use 4 CM’s per pop in a situation you need to use both, bringing the count down as low as 15 pops in total) the flare pattern is also a pain since it goes too high above the plane making it vulnerable to irccm missiles(like the 9M and R-73) and sometimes being killed even by non-irccm missiles because of it, not only that F-5T has more pops than it(45 pops) with a better pattern.
Mig-21 Bison is balanced where it is, it’s radar has a small window(40°/-40° of elevation and 40° of azimuth) you can just get out of it with a crank, you literal have more azimuth and elevation, and R-24R’s are great, all you need to do is launch on him, even if he chaff later just maintain the lock and the missile will do the work.
About the RWR the SPO-10(MiG-23M/MF/ML/MLA and a lot of MiG-21’s) you’re just nitpicking since it can’t see any launch not only bison, it’s a shit RWR the worse on the bracket even AN/APG-25(F-104S) and Mirage Detecteur(Mirage F1C/F1C-200) that are also shit have a basic launch detection/CW detection, not only that, Kopyo-21 is on I band that everyone detects since is a very used band
Because Flight Performance Matters a lot, F-16A Block 10 is one of the best Jets in FP department, comparable with 14.0 jets in turn performance, mig-21 Bison is a MiG-21Bis with upgraded weapons and electronics
If anything F-5’s are undertiered, plane is easy to play, have great guns, good flight performance and turn, the thing is most F-5C decide that one of the best dogfighters of it’s Br would work as a good bomber, so they strap a shit ton of bombs that weight as much as the plane, making it hella slow, the plane also lacks any kind of CCIP so they need to fly low to hit the target, flying low and slow, with barely enough energy to not fall from the sky is literally being a easy pray to anyone