Currently there is no incentive for pools to do this, because everyone is using ICANN domains and IANA IP addresses.

Currently there is also no incentive for me to mine at home, because I would make a loss. However, I would love to mine at a loss with my RaspiBlitz if an upstream pool or proxy were to take on the role of IANA by giving me an IP address. Sure this would initially be an IP address in a local network, but why not do the same on a global level if it proves to be useful locally.

Pools that compete with IANA could serve a market of miners who care about removing the authority from their addressing system more than they care about profitability.

Regarding domains: ICANN just manages a fiat list of who owns what namespace. We don't need them because we can create our own namespace (npubs) managed by entropy rather than fiat.