No, he's right in that there are a lot of similarities, but he's still missing the point.
Tsubasa Chronicles uses lots of re-hashed characters and places. It's an opportunity for CLAMP to re-cast characters from their previous works in new roles. They're not exactly the same characters, their personalities are often a bit different, but it's generally close enough. The main characters are Sakura and Shaoran from CCS, sure, but they're hardly the only re-used characters you're going to see. Cameos abound in this series, a fanservice that was no doubt done purposely to guarantee that their existing fanbase nuts themselves over the series. CLAMP loves money.
So no, Tsubasa Chronicles is NOT like Card Captor Sakura. You just saw the first episode, which (mostly) takes place in the main characters' home world which IS based off of CCS elements. Other worlds they go to, however, will be completely different.