What do you mean by commercially released html5 games? Are you talking about ads or selling the rights to use your game to publishers/companies?
Just had a quick discussion with Simon as the licenses were created before html5 & the console platform targets were added to the engine.
With either of the indie licenses you can distribute html5 games for free or monetize them with ads.
If you want to sell html5 games to publishers/companies or have been commissioned by a publisher/company, then a professional license will be required.
You can work on & export as many projects as you like with the indie license, so feel free to work on commercial titles with the indie license, but don't forget to acquire a professional license (per title/game) when you are ready to sell the game.
If you have any further questions then don't hesitate to ask on here or via our Discord server (link is on footer - icon to the right of the twitter icon).