This is definitely the move of a company in the process of scaling up production of their mass market vehicle that their valuation hinges on. Definitely not about managing cash flow.
https://twitter.com/elonmusk/status/1006597562156003328
I also think that this move was mandated by the board when it recently voted for him to remain chairman (maybe not the firing per se, but that Tesla becomes profitable ASAP).
The russian letter n and the twitter interface together make it a bad combination.
Lacking the above info, it could very well be the move of a company concentrating resources on a full-scale ramp effort and pruning back non-core or non-scaling lines of business.
Trading is not easy. Plenty of folks were correct on a 2007 market top ... they still managed to lose money ... because they were too early among other things.