Although Charlie Lee makes a nice analysis and has some valid arguments I suspect that the main agenda of why Charlie is promoting a block-size limit and a fixed minimum fee, where smaller crypto currencies can handle micro payments, is to support/promote LTC and not the health and future of the bitcoin network.
Why would he put Litecoin infront of Bitcoin? That doesn't make much sense to me. Yes, he is the creator of Litecoin, but I am fairly sure that he as person is realistic enough to know that Litecoin has no future at all. It's nothing more than a coin that is being used to make big profits by Litecoin whales.