I do agree with this statement, and I've been very pleased with the support so far.
I realize that Hubitat is not intended to make a profit, and is mostly a collection of people like yourself who wanted a local version of ST without the learning curve of trying to get openHAB running. My concern long term for hubitat is will the support continue once it has reached market saturation and the sales dwindle?
My hope is that the product will be stable/mature enough by then that it won't matter, but I do have some small concerns as the code isn't open sourced. If Hubitat went up in flames, there'd be no way for someone to pickup the torch and continue on.
This is also a concern for Samsung, but Samsung likely bought Smartthings with the belief that it would give their other products an edge, ex: Home appliance differentiation, if I'm choosing between an LG and Samsung Washer/Dryer combo, I am more likely to go with Samsung just because I could find something interesting to integrate it with my home automation, assuming similar costs. It's not a division that they intend to make money on. Long term their bean counters may not agree that the home automation platform boosts revenues enough to make up for the costs, but for now that's probably what they are believing.
Hubitat, Inc. has some costs that won't go away when market saturation happens. Website/forum, AWS Lambda – Pricing, purchasing various devices for testing/integration and potentially paying yourselves for the work that you are doing. (I'm sure there are other costs that I'm not listing) Unless one of the founders is independently wealthy and very nice, this will become a problem one day as Hubitat, Inc doesn't have a parent company that is willing to throw cash at it.