Not really. Taylor had no mainstream No. 1 singles on her debut, just on country charts. Jewel had 2 mainstream #1s off her debut (one which held for 9 weeks) and also one which reached No. 2 I believe. Not to mention that Jewel's debut is one of the best selling albums OF ALL TIME. 12x Platinum.
Taylor's career is MUCH better however and I think Lefsetz is still holding a grudge for getting dissed in "Mean." He's usually a bit more thoughtful than this.