well thats why bitcoin-core is there.. to validate properly.. and drop invalids.... and that should never ever change for bitcoin core.. handing off invalids to other peers once bitcoincore knows its invalid.. is as i said a few times, a rediculous notion.

i would never in my life trust any data coming in on face value. and soo all these litewallets will fail by trusting opcodes to say its valid but never actually checking..

we should not be thinking of way to add more data to a tx/block in full nodes.. just so that litewallets can be lazy and ignorant.
i originally thought segwit would originally be a better lite wallet. but when i started reading that its a medium weight wallet that does no check and takes data on blind faith of who sent it. without checking origins.. i facepalmed