I have several editions of the Agfa pdf file on film developers. The later ones include times for the revised AgfaPan400, but otherwise are much the same. The later editions have more typographical errors, though. PM me and I'll email one to you. I also have an Agfa page with data for many films, including some now obsolete ones. Worth a read if you're interested in 1+100 use.
I've found that to be true also, and one of the reasons I dislike Rodinal for many applications. The documentation states that these development times coupled with the recommended agitation schedule result in negatives with a contrast index of about .65. "Normal" contrast yields a contrast index of .55 to .58. To get box speed, you wind up with higher than normal contrast. Sometimes this is what you want, other times not.
Stumble upon this old discussion and thought that i could contribute to some other reader.
Here is a page from a more than 15 year old datasheet from true Agfa Rodinal, it does differ a bit from those in this old discussion. The times are shorter, except for Kodak films(??).