There are commercial induction Wok burners but I've never seen one for home. And I've heard the commercial ones still lag but I've never used one.
Commercial induction burners max out at about 5000 BTUs(and above 3500 is rare), and that's on the expensive models. A relatively cheap commercial gas range will have many 10,000 BTU burners. My $500 home gas oven that I recently bought has an 18,000 btu burner! I know gas is less efficient, but that burners going to put out more heat than any two induction burners.
On a wok or any large item (such as the 5 gallons of wort or tonkotsu broth I sometimes make) you couldn't get enough watts with induction to properly stir fry or to heat a large mass quickly. Some of the bigger gas units you can buy for home put out really high BTUs while taking up very little electricity.
My point wasn't that induction isn't great, it is. It's just not better in every way. It's got strengths and weaknesses.