indeed the term shitcoin is usually pinned to a meme coin, but for doge an exception, the achievement of doge some time ago provided several benefits for the holder, beyond the effect of Elon deliberately making a pump.
Yes, Dogecoin doesn't deserve to be included in shitcoin because Dogecoin is not a new coin that was intentionally made just for pumps, but Dogecoin is a coin that has been in the crypto space for a long time at a very cheap price and it's also not a mistake because Dogecoin is basically cheap once.