"Useless without consensus" doesn't make them centralized.
This is just semantic bikeshedding at this point. I just think the way you put it is just misleading. It's fair to call out Tor's shortcomings but I don't think onion addresses are the issue.
The claim was that LNURL over Tor had the property of not needing "centralized DNS":
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Replacing centralized DNS with centralized Tor isn't a change in centralization level. That's why presenting it as such is misleading.
Bolt12 is clearly superior here, when implemented, as it re-uses Lightning infrastructure that you have no choice but to depend on anyway. A lot less moving parts too.
LN infra runs on either clearnet or tor so I don't really know how that changes the centralization level.
It's not so simple to just say "LM infra runs on clearnet"
Lightning nodes don't depend on DNS or certificate authorities, and Lightning routing doesn't depend on uncensored end-to-end connectivity. Eg if your ISP censors IP connections to Charlie, you but you have a route to Bob and Bob has a route to Charlie, you can still pay Charlie with Bolt12 payments because on LN there exists a route via Bob.
And to your point: historically many domains have been seized. Which tor onions were blocked by "tor centralized consensus"?
Historically whole swaths of onions have been effectively blocked due to Tor being DoS attacked. While ~zero LN related stuff has DNS blocked (or blocked by certificate authorities. So Tor loses on that count.
Overall, DNS itself is more decentralized than Tor in terms of number of points of failure (there's a _lot_ more root servers than Tor directory authorities, and also a lot more domain registrars to choose from). OTOH, Tor tends towards "all-or-nothing" failure modes, as it's much harder for the people running Tor to block a specific service.
In practice of course the internet itself is arguably a centralized system due to how IP addresses and routing work. But no-one has really tested that politically so it's quite possible that attempts to censor via that level fail and the internet fragments. We really don't know.
