1. The mistake is that it was merged too soon, without community conensus. So now governance has become a central point of failure.

2. Dont put images in the block chain, put a reference to them instead, and store them off-chain. Alt. narratives are red herrings.

3. This change increases the attack surface, with unclear consequences. That is particularly bad when securing $2 trillion of users savings.

4. Sensible heuristics can limit or make more expensive these non-standard transactions, which is one of the smart things Satoshi figured out.

Still not too late to fix.