I had a look at it . It might be enriched in L21- but I think it should be pruned from a few ones. For example JXHHH and K4SJJ (same surname) look different with DYS393=12 and DYS490=13.
How many in this list have been tested L21- so far ?
I haven't had a chance to count them yet, and I got home from late this evening, so I won't be able to do it tonight.
I don't think any members of this cluster are L21+.