[gge]

bc1 isn't an uncommon prefix, its a bech32 native segwit address that's been in use for years now (IIRC 1 and 3 are the other prefixes, 1 being the first and most popular and 3 being a backwards compatible segwit address, i.e. non native). Stats: https://txstats.com/dashboard/db/bech32-statistics?orgId=1

faulty key pairs being generated is a well known issue with poorly developed wallets, not with Bitcoin itself. None of the popular wallets have this issue so it doesn't undermine Bitcoin.