Interesting video. Thanks for sharing! I think he did a good job of explaining their POV and I think it's a good reinforcement of what's been said already. I particularly liked his take on the 'P' of tulip from the Lutheran POV. Very interesting!
However, I think his assertion that Reformed folks are basically products of the enlightenment and are thus too "rational" is patently false. Anyone who's read enough Reformed authors will see that they have no issues appealing to mystery when it comes to how God's sovereignty and human will can work together. J.I. Packer is extremely clear on this point (he prefers the term "antimony") in his famous work
Evangelism and the Sovereignty of God. Also, his claim that Limited Atonement is not Biblical, but is simply a product of vigorous logical reasoning is simply not true as anyone who's studied the Reformed POV can attest.
Anyways, I think it's pretty clear that both Lutheran and Reformed openly and proudly embrace mystery, paradox, or antimony (if you like). It seems to me that it really boils down to
where they embrace the mystery when it comes to soteriology (as we discussed above), not whether they do or not.
So I think the video is helpful for understanding the Lutheran POV, but I think his claims about what Calvinists believe are inaccurate and unfair.