World population is largely a strayman, it's mostly about rising standards of living. Animal consumption per capita increases drastically as poverty dissipates, and sharply declines as people get educated about health and the environment. It's a race between those two pressures that determines the cattle population.
Projections are that it will increase very, very drastically as middle eastern and african countries soon escape the poverty line
Grass grows more vigorously but also consumes more nutrients when regularly pruned, other plants also "grow more vigorously" e.g get replanted when harvested by humans. This does not seem unique to grass or animal feeding.
Even if it was, grass-fed beef is about 1% of the supply in the US. It has also been shown that grass-fed beef on average causes more environmental degradation than conventionally fed beef, due to the deforestation required to create grazing areas
Most plant monocrops are for feedstock. You can do regenerative agriculture with only plants. Feeding animals plant calories is terribly inneficient (~10-15% depending on the estimate)
Resource allocation plays a part no matter how many resources you have, any company wasting resources is likely to lose to one who doesn't.
In the specific case of LIDAR, it also increases the price for the end customer significantly, for negligible ( perhaps reaching 0 at the limit ) gain.
More data for the model means a bigger model using more computation and storage, and likely exponentially longer training time.