No, Spirit Reaper only destroys itself after the effect that targeted it resolves and it must still be face-up. Basically equip cards and Enemy Controller can 🔥 it.
Duel links baits you by releasing old powerfull cards after modern cards, so that you think "omg this is broken" and you get scammed. By the same logic you can't use past data to evaluate a deck. Cyber slash was released in 2019
Harpies were meta since xyz first came out, even without cyber slash. About spirit reaper only time will tell. Some old cards became instant tier picks, see book of moon, mst, monster reborn, enemy controller, cyber stein, gold sarcophagus, stratos, malicius whereas others were completely neglected see bottomless trap hole, smashing ground, vortex etc.
Spirit Reaper won't be busted but it's still a decent card. Certainly above C+. Interestingly its real weakness is probably being a 300 atk monster in a game with only 4000 LP. Makes attacking with it a lot more risky.
Anoymous
Fetih 1453