Nobody said otherwise. The Irish language is the language of Ireland. As mentioned, only a certain creed would dispute that. Also as mentioned, it is used and dominant due to coercion. Of course history is relevant.
It's Irrelevant how much you think people may remember what they learned.
It makes perfect sense, in fact more sense to use the native language that is still used, in a visual like this. Nobody raging about colonialism here, but some cunts are very easy to see when they try to dispute any native culture. Especially when it's for no other reason but to be a cunt. A stupid one at that. "Literally nobody speaks it" literally.. Yeah.. ๐