
Er...
Gergely Orosz seems to be missing the part about all employee's salaries (& fringe benefits) in all US businesses being standard business expenses and are written off against income within the same year. That's independent of whether they are R&D folks, floor sweepers or whatever. That's independent of what type of business it is. His "a theoretical company with $1m in revenue and $1m of software developer salary costs" example just underscores that he is clueless about how to run a business in the US.
What would be affected in R&D are capital expenditures as well as expense expenditures.