Certain nodes not running Bitcoin Core allow for non-standard transactions.
Most
alternative nodes are either built on top of bitcoin core or are translated line-by-line from bitcoin core which means they do exactly what core does.
I sent the tx to the nodes with the following user agents, some of them rejected it but most didn't reply (same behavior as core since
reject messages were removed):
Statoshi
CKCoind
btcwire/btcd -> rejects (reason= using uncompressed pubkey)
BitcoinUnlimited -> rejects as bad txns
therealbitcoin.org -> these are some broken ass nodes that violate the P2P protocol but some seem to be accepting it
KIT-DSN -> rejects (reason= using uncompressed pubkey)
bcoin -> terminates connection