I don't hear anything odd either, Andy.
But....I had a go at that lesson and was surprised that the
big stretch at the second half of bars 5, 6,and 7 wasn't discussed in the lesson blurb. Then I looked again at the video, and - even more confusing - Kirk doesn't do a big stretch at all!
Finally, the penny dropped - that is what Kirk must be refering to as the 'going to the upper string frets first' instead of the bass notes first. What I hadn't realised is that you have to get from the
------------ ----------------------------------- --------------
----------- ------ to the ---1--- followed by the ----------0--
-----------0-- -------------------------------- --------2----
-------4----- ----
off------------------------- ------0-------
----3--------- --
off------------------------- --------------
-------------- ----------------------------- ----2-----------
and do it seamlessly. I was trying to do the 'holding down the arpeggiated chord all at once' thing - which is quite a stretch and then trying to get to the D7. But you don't need to. I'm still working on the Kirk way since my way did not work out so well - no surprises there!

One good thing about music is that when it hits you, you feel no pain - Bob Marley