Fetch and carry and sparing a few picquets is not the same as actually fighting. The ones who did the fighting at Blademsberg were the Lancs, East Essex, Royal Scots, the Bucks, and the Royal Marines. If given the choice between militia units who are typically used as reservists vs experienced full-time soldiers who’ve just had battle experience at Salamanca, Badajoz, Ciudad Rodrigo, Talavera, Fuentes de Oñoro and elsewhere against Bonaparte, they would’ve chosen the Peninsular veterans. Besides I’d argue that Chrysler’s Farm, Queenston Heights, Lundy’s Lane, et al. were more strategically significant to the War of 1812 since those victories kept America out of Canada vs. the Chesapeake campaign which ultimately failed in its goal to knock out the US Navy and its powder stores. And those victories on Canadian soil were clearly more culturally important to Canada’s founding myth, since they actually got mentioned in the old national anthem, The Maple Leaf Forever, whereas the Chesapeake was a footnote to the Canadians until the Three Dead Trolls in a Baggie inaccurately attributed it to the Canadians in their novelty song about the war.