The recommendations are essentially very good. The key is to have at least 0.8 grams of protein per kg body weight. That's the minimum. If you workout for muscle gain, you should take more. What you need to consider is protein adequacy. Plant proteins are not as completely absorbed by the body as milk, egg, or meat proteins. They also do not contain the same amino acid ratios that animal proteins deliver. So, 1 gram of plant protein is not the same as 1 gram of animal protein. But you can get around this issue, if you take your carbs from legumes, seeds and nuts, instead of from fruits and veggies (nor foregoing the latter, of course). legumes, seeds, and nuts have a better amino acid adequacy.

I had in mind to write an article about this issue, which, thanks to you, I have now put higher on my priority list.