Maslow's theory was never proven and in fact is widely criticized but it provided a starting point for people to think about theories of motivation.
Also see the ERG theory which builds off of it: https://en.m.wikipedia.org/wiki/ERG_theory
Also see the ERG theory which builds off of it: https://en.m.wikipedia.org/wiki/ERG_theory
That series of tweets suggests that people have misinterpreted what Maslow himself was theorizing, so it kind of sounds like what people are criticizing is a strawman that did not originate with Maslow himself.