Hmm, from an XCF point of view, it'd be easier to just mortar such areas, or better yet, nearby cover. Faster and probably also kills some enemies. Or at least their cover. Throwing isn't necessarily very accurate at long ranges due to no LoS penalty. And the maps are bigger, 60x60 and up, frequently lots of building cover as well. Sometimes pretty high buildings, too.
OG 50x50 maps are probably somewhat better suited for this, but I'd appreciate it if you could convince him to share at least a few videos. Would make for some neat promotional material for you, too.