That isn't the limitation though, it's the consequence. The phrasing of the tweet is extremely memable, but thinking about it for 5 seconds should make you realize that negative prices mean they REALLY need to get rid of it. Because having too much energy in the grid is a problem.
I'll take the armchair YouTuber scientist, thanks!
It's gonna be cheaper for me to store energy myself than it is to pay an energy company so they can profit. I may not benefit from the economy of scale that a large installation provides, but I'm not gonna benefit from that anyhow. Some rich asshole is gonna skim the cream off that. I'll benefit by not paying what they charge.