Everyone has their own approach, you’re not entirely wrong, but you also aren’t correct either. I want the plant to stretch to fill out the tent fully, partly so it doesn’t get chocked out by the other ones.
The less dense plant wouldn’t suffer, and the bushy one won’t take the light that’s not touching it. Both would stretch more to fill out the canopy. Also genes only do so much, site conditions, watering frequency, nute strength, etc. can all lead to different expressions in the same “genes” ie clones. Even clones can have different phenotypes.
Defoliating the bottom would be counter productive and useless, the plants 6” tall with the light 30” away, the lower leafs are getting marginally less light due to the inverse square law.
Plant was trellised yesterday, will be “scrogged” for a week before flipping.
Most are topped as well, so atypical dominance was broken already.
Taller plants can be layed over making a sudo scrog that’s immediately flowered. There’s a thousand ways to grow this plant, no one person should claim they have the correct way to do it.