To be clear this statement is mostly correct.
Please forgive me if I am coming across as harsh.
That is not my intention.
But the reverse can be done for sure.
You can easily take a short stocky plant and make it very lanky with light.
Also
Just blue light without red and far-red will make plants abnormally short.
So you can control the lankiness within reason with light, even with super-stretchy plants.
Also, you can manipulate plant hormones to make the world stretchiest plant, short and stocky.
And vice versa.
Peace
Shag