It is amazing, but (in my humble opinion) this is what you get when you have real growth for a reason rather than Fed-stoked fake growth based on artificially low interest rates (which is what we had since 2009).
The reason in this case is the absolutely shocking reversal of American corporate tax policy from a punishment for anyone making the mistake of putting their headquarters in the US (by sticking them with a tax rate almost double the world average and applying it to all their income whether in the US or not), to a rate pretty close to the world average, so you can start your company in the best country in the world without being punished for doing so.
With a lot of new companies and old companies growing, you can pay higher wages, and also you’re making more stuff, so you get more demand and more supply and hence it doesn’t spike inflation.
You crystallized it. Economic policy does not have to be arcane science. Lower taxes stoke job growth and hiring, boosts wages and income growth, and fuels GDP. People want opportunities to earn a fair wage. They (most) don’t want handouts. Simple, but politicians muck it up. Thank God President Trump gets it.