UPDATE: I finally got this sorted out.
I can confirm, update 1.3 does NOT need a profile linked online. It doesnt even require an internet conection configured.
BUT, if you happen to have in your Switch any user account that have been linked online before AND has an exclamation mark on it (requesting ou to log online again to revalidate it), the game simply wont gobeyond the "updating game data"
The thing is, since firm 6, Nintendo wont let you unlink a user account, nor even delete it, without conecting to the internet (and obviosly updating to the las firmware aviable). So, even if you have linked those account before, if you dont validate them when required, those will be stuck there.
WHAT I DID: I created a clean emunand and updated it to 8.01 using choidujour.
Then in the emunand system menu delete the accounts letting them connect to the internet (no Incognito,nor DNS, nor SX stealth mode). This is a clear ban risk.
Before deleting the last profile it will ask you to create a new one (because you cant have no users in the system).
So,I created a new user profile, not linked whatsoever to any nintendo account.
This will be the user profile wou will be using to launch the game from now.
SO: now i can play MK11with update 1.3 in emunand.
BUT: if i wanted to do this in my sysnand, i would need to connect ir online and update to 8.01.
That, or maybe i was thinking. Wouldnt it be possible to delete user accounts directly using Devmenu?