Mining decentralization is a massive issue, and no one has done as much to address it as nostr:nprofile1qqsq9k04vahllseell55m74n3047y88pzlr0z5yany32st29fapqmgsppemhxue69uhkummn9ekx7mp0qy2hwumn8ghj7un9d3shjtnyv9kh2uewd9hj7qgawaehxw309ahx7um5wghxy6t5vdhkjmn9wgh8xmmrd9skctc87ckyu, hands down.
Imagine if pools didn't even construct block templates at all, but were just there for coordinating reward splits.
Miners would actually be in control of what went into a block again, and they wouldn't just be rented hashers.
Anyone who wanted to get non-standard transactions into a block would have a much harder time, since pools would no longer be the decision makers with massive amounts of hash available to make it happen.