Isn't this the nature of past technology developments? few tech companies have a true technical "moat" - In California, the employees of any firm are free to raise funds and start a competitor the moment they are dissatisfied with the current leadership/compensation/location. During my career I have yet to observe a "secret sauce" that took more than a few weeks to learn and understand once on the inside.

The technical moats we know of in B2B have typically come from a combination of a large number of features efficiently tied into a platform/service that would be cost prohibitive to replicate (ElasticSearch, most successful Database firms), a network effect around that platform the makes it difficult not to be on the platform (CUDA, x86, windows).