Still... Daniel was also once an ascended ancient, who although "stripped of memories" was still able to retain some of the memories and experiences, and also had the knowledge of Merlin in his head for a while.
Ascended
being, not Ancient. There is a difference.

He was only able to remember some memories from his time as an ascended being after RepliCarter probed his mind. He would have forgotten about them after the latest of his many "deaths" on-board the replicator ship.
And the knowledge from Merlin was pretty much gone (except for the lingering visions leadimg them to The Ark) after the Merlin consiousness in him died, reverting him back to "Daniel 1.0" before his succesful attempt to get the Sangraal back through the Ori supergate to their home galaxy.
Point is, while Daniel is awesome, his skills are again limited to his knowledge of the Ancients as a culture, and his ability to get hot alien booty despite being a geek stereotype, lol.
