Could have said the same for Linux? Microsoft could have learned from it however much they liked, but not only is Linux relevant despite commercial competitors (think Firefox market share as of today), it's now by far the most widespread one
Absorbing all the good ideas or data from openly available systems doesn't seem to be the only determiner
Linux is only widely used/successful today due to commercial vendors who consumed it as way to reduce their input costs. Arguably the same incentives exist for AI in which case the way forward would be through some sort of consortium of companies that use AI themselves funding the creation of models. Obviously when this scheme is extended to the limit, you get governments funding model creation, much like they fund building of roads, railways, ports and atomic weapons.