I'm not actually interested in making this desk, but I watched it long enough to see this builder use a track saw without clamps. Is this normal use? Since I bought mine recently (cordless Makita, thanks Mike), I've been careful to clamp, but if I don't need to, I can save time.

See 00:35 seconds

https://www.youtube.com/watch?v=IN0j34WDlg4

Thanks!