That’s the only potential in stumping for Ole Bernard. Admit it. With Biden’s victory they can hold out hope that Bernie would’ve been able to do something different. There’s no alternative to an independent and international party of the working class.
I'd say you have a point but it's sort of a distinction without a difference. He has a mix of socialist and social democratic ideas, describes himself as a socialist, and fights for socialist goals such as workplace democracy and the nationalization of major industries. He's not a communist, Marxist-Leninist, or a revolutionary like most folks here but it's accurate to describe him as a reformist socialist or a market socialist.
"Reform!" is only a meaningful statement if the alternative is revolution. There is absolutely zero danger of revolution, so Americans have absolutely zero chance of getting reforms instead. The minute that you will get serious reforms in the US is exactly when you will know that a revolution was possible and was killed. It's not going to happen otherwise. The New Deal came after the independent left was crushed in the US, and what was left was beaten and its dregs were co-opted and absorbed in the Dem party. If there are reforms then you've lost and thats your consolation prize in exchange for keeping the empire running.