"Therefore, for me to test on Safari, I either have to... pay out of my pocket for some sort of cross-browser testing tool (even if it's free, I am spending extra time)"
That's precisely the 'lazy web developer' that they're talking about. Oh god no, you have to test on a browser you don't use.
Sure Chrome is dominant, but Safari has about 15% of the market so by taking the stance you do, you're dismissing 1 of 6 people. Because you're lazy.
That 15% of the market is only relevant for companies targeting first world countries with people having wages to buy Apple stuff.
The large majority of the companies across the globe have already enough to do with their local markets with zero (0%) presence of Apple devices.
If Apple wants them to care about Safari, they can easily make Safari available in other platforms, has they have done when they were struggling for survival.
Supporting 85% of the market is basically free - because you already have a PC, and all browsers can be installed on that, except for Safari. But supporting the remaining 15% requires paying several hundred dollars for hardware that you don't really need for any other purpose. I don't think that refusing to do the latter is a case of "lazy".
That's precisely the 'lazy web developer' that they're talking about. Oh god no, you have to test on a browser you don't use.
Sure Chrome is dominant, but Safari has about 15% of the market so by taking the stance you do, you're dismissing 1 of 6 people. Because you're lazy.