Funnelback noindex tags and Cloudflare HTML minimisation

I have pages I want indexed, but which have had added to them content blocks containing micro content which is acting as keywords - affecting the search results for those terms.

I found information about Funnelback noindex tags at Redirect Notice - but the nature of the tags is to include text within an HTML comment.

Cloudflare HTML minimisation removes HTML comments…

…are there any non HTML comment noindex tag options for Funnelback?

There is a built-in filter where Funnelback can inject those noindex tags at filter time, but it needs something to select on (perhaps you can include empty div tags with an ID or class defined or maybe you already can work with the HTML you have).