"Active LOW" relay board Pin configuration
That relay module is driven by optocouplers. You are just driving and LED, and that is connected though a resistor to VCC.

In the past it was common to use active low for driving things since an N channel MOSFET could typically sink more current than a P channel one could source. Also in the days before CMOS there was really only low-side (sinking) switching, so active low was the norm.

These days it's not necessary, but it's still common because that is how it's always been.

So yes, active low is both common and accepted.