In Tetsu’s video he pours the first 2 pulses in 5-6s each, which you are also doing. With the water exiting the kettle at around 10ml/s (though the average pour rate is 2g/s - e.g. 50-60g every 30s) you are not likely to have the stream break up.
Tetsu’s 3rd pour is completed in 10-15s so you look good there too, for what you are aiming to do.
There isn’t a single right way to pour, you do not need laminar flow (you need to match pour rate to grind size). If you weren’t using the Switch (or simply always kept the valve open) and were pouring free hand with a coarse grind, you would need to slow the pour rate, When you pour slowly (I am often pouring pulses of 2-3g/s for an avg of 1-1.5g/s) the stream tends to break up into droplets as it hits the bed/slurry. This isn’t an issue for that approach, bear in mind auto drip brewers deliver all their water in drips/droplets and can make very clean, well extracted cups with relatively fine grinds.
Pouring too fast/aggressively can make cups silty/bitter/lacking in brightness at an otherwise good extraction/grind size, You can pour more aggressively in the first stages as you want to be sure to fully wet the dose, being more gentle as the brew progresses (spout close to the bed, water dropping vertically, not hosing in an arc). But note, this approach is not consistent with Tetsu’s method.
Be aware that brewers cup methods often have fairly quickly poured pulses, this is usually because they are making 3 cups at once and need to fit a pulse for each cup within each pour interval. E.g. you can’t have 3× 20s pours, if you need to get the first pulse completed by 45s.
The Hario Drip Assist is a great addition for anyone who suffers from pour anxiety.