I'm on the fence on this one; it doesn't make sense that the game doesn't allow for this, and when my players have asked, I want to just rule "ok, sure", but the only thing that stops me is that there might be something that this breaks somehow.
I don't know what, and when I asked, nobody could think of anything. It's one of the things I miss about how WotC used to be, when they were more transparent about why they make rules the way they do. Now, you see a weird rule and you have no idea why it is the way it is, and what other rules are being propped up by it.
Take the "bonus action spell" rule. It's weird and mystifying and makes no real sense...until you look at the Sorcerer's metamagic and go "ohhh, I see, they're afraid of characters flinging double Fireballs"...
Until you see someone demonstrate Action Surge Fireball, lol.*
*in fairness, 2024 has both stated the intent of not being able to double level spell and not letting Action Surge duplicate a Magic Action, though laughably, it didn't take long before someone found another loophole, lol.