They need all those projects to surface good ideas and they need all that parallelism to identify mistakes they can avoid.
Without it what do they base decisions on? React would be guesswork or an internal tool built in isolation that only solves their specific problems if even that good.
This is how software is evolving. If there is no parallel evolution it will take 1000x longer to do so. If it takes 1000x longer to evolve it takes 1000x longer to invent opportunity and savings for FAANG.
