This would definitely be a better option than acid etching, since that rarely creates the profile needed for epoxies to bond to.
If you are using water to help cut down on the dust, you really need to make sure that muddy slurry is completely removed or it will be a bond breaker as well...
Acid etching isn't an adequate form of surface prep to create the required profile you need to get an epoxy to bond well.
You really should grind or shot blast for best results.
With that said, a standard floor finish will be as good as anything and will be user friendly in the meantime...