No. Alanis already toured for that album 20 years ago. Why do another one? She's released a few albums since JLP, and I don't think she should just focus on that one because it's her most well-known era. That just seems weird.
I went to a concert for a tour like this one (25th anniversary of Living Colour's Vivid), and I REALLY enjoyed their performance. It's kinda cool when they do these kinds of concerts because you might get to hear an artist do a song live that they might not have done since they originally toured for that album (or that they may never have done live, ever).
But I kinda see Dave Grohl's point that these kinds of tours are sorta lazy. It all depends on how creative they get with the album they're performing.