I dont think thats true at all. Even the sugar they have is strange: see `go` and `make`. Go has plenty of good features and "lack of ergonomic faculties for common programming idioms in Go" is not one of them.
It can trash db performance. A relatively simple alternative is to store references to immutable blobs in the db so that everything remains transactionally consistent (and easily restorable to any point-in-time). This is what many large companies do. I happen to work at a company that runs the largest + most "shall not be named" databases and has struggled for years to evict all the blobs people shoved in em.