Actually it doesn't if you read the rules for markerlights it is very specific how they generate tokens "Instead, each time a unit suffers a hit with this special rule, place a markerlight counter next to it (no saves can be taken against these hits)" pg 68. I don't see how that could be any less clear. GW actually learned from their previous version of Markerlights and there are almost not rules quibbles about them this time.
No worries.
It just gets misunderstood a lot since if you don't have a copy of the Tau codex you'd never know. And the markerlight section is like half a page, so reading it during a game from an opponents book can be rough.