think that for those with no possibility of access to a "real-space" Sangha, this is an interesting and potentially useful idea.
Personally I have reservations about Jundo but they are mine and if your practice there is strong, that's the main thing.
All the best.
I would agree with Dan74. Whilst I would not subscribe to, or generally recommend Treeleaf "Zendo", if it helps you to practice (sit) to start with, it is not a bad thing I guess?
My own limited opinion is the major limitation of Treeleaf, and of the good man Jundo, is it/he presents a particular view and stance of Buddhism which is limited by his experience/understanding (like everyone - which is why the real is the rare gem in Zen).
To sprout a new line.group can be OK, but for me I think it also depends that the person is real i.e their insights are deep and genuine and well lived. In theory, having been taught by the real gives the students a better chance of living the true themself...but then again I guess it all also depends on having the right teacher, and even in established lineages yes we have also seen error. So maybe as Dan indicates, practice is still the best bet in any case!
And who are we to say what leads to what and what leads to which.
Karma, intention and will all play a role in the roles we live in this life, and may it be good for all of us - and thence the wider world/universe at play.
P.S. Myself, Dan74, shel (i.e praxis & perhaps other names from what I am reading now) have been around since the old E-sangha days - maybe even circa 2004 so these users are not new to the internet, or the world of online Buddhism "talk"
P.P.S praxis, you have been hitting the Treeleaf line for a long time now, I am no fan of Jundo and would not take guidance from him myself, but the reality is this whole world sees things differently. Almost all of Treeleaf Sangha is here to defend the group, and if they find it useful, then who are we to argue that..IMO. Happy New Year.