If you're going to interpret Satoshi's single "tyrannical" reference as endorsement of restraining block sizes to 1 MB, it is a much weaker 'endorsement' than multiple explicit calls for a much higher on-chain throughput, including his directly saying that the intended network configuration for Bitcoin at scale was for validation to be done only by users with server farms, which implies even greater than 100X boosts in throughput from current levels.
As for initial synchronization:
There is no basis for claiming users cannot keep up with it at 100X current throughput levels, and like I said, relying on trusted third party set checkpoints to completely do away with validating the entire blockchain history is always an option, and already one being utilized to some extent with the flag in Bitcoin Core to skip validation on transactions older than a TTP-set checkpoint.
Saying every one should validate, but then limiting the world to 300,000 on-chain writes a day, meaning limiting who can use Bitcoin without third-party intermediaries to 0.1% of the world population, is a bad trade-off. Better 10% of Bitcoiners be able to run their own fully validating node, and all 7 billion people be able to generate transactions *with their own private keys*, than let every one with a PC run a fully validating node, while only 0.1% make writes to Bitcoin with their own private keys.
In a scenario where a party cannot write a transaction to Bitcoin, due to limited on-chain capacity, there is little point in running a fully validating node. Emphasizing full node validation accessibility over main chain write accessibility to this extent is not a sensible prioritization.
Regarding this off-chain payment channel networks Red Herring, there is no reason to be confident that PCNs like the lightning network can provide a mix of trade-offs that will make them compelling to a wide set of users, and indeed the LN has still failed to get traction nearly 6 years after first being proposed.
The capital lock-up requirements, especially in a setting where on-chain transaction fees are high, the need for being online to trustlessly receive funds, and the routing challenges, are all potentially fundamental showstoppers for the LN being a viable technology for widespread utilization/adoption.
Finally, even if payment channel networks work - which is a very speculative 'if' and not one that the entire empowerment of humanity with access to electronic cash should be made dependent on - blocks would still need to be on the order of 100X larger to enable global mass-adoption, as payment channel networks do not completely do away with the need to have on-chain throughput.