I asked a Registered Dietitian in Canada and received this answer:
Zinc/copper balance is only a concern when taking zinc or copper mineral supplements. Just focus on getting enough zinc from whole foods and you'll be fine.
This is similar to what I found in the Cronometer blog post about nutrient ratios:
Nonetheless, it is common practice to recommend a ...
It is possible to obtain sufficient zinc following a vegan diet, as small quantities are present in many foods, but it may require some planning and awareness.
The UK Vegan Society gives different figures to your source (UK RDAs are different?), 7mg for adult women and 9.5mg for adult men. Their guidance on zinc has this table:
Food Source | ...