There's of course no reason to stop at indiscriminate use of it, we should employ whatever vaccine strategy seems to be best (in an empirical sense), and supplement with other measures, I'm going at the banality of the point.
The best strategy against escape variants available to us right now is to reduce transmission rates (especially to immunocompromised people) as much as possible with high vaccination rates.
https://www.thelancet.com/journals/laninf/article/PIIS1473-3...
The article you cited is in agreement with the literature I previously cited - as more people are infected the virus has more opportunity to mutate.
> The best strategy against escape variants available to us right now is to reduce transmission rates ... as much as possible with high vaccination rates
Your comment contradicts the mounting evidence we have available to us. Yes we need to use the vaccine tech we have at our disposal now - but in a highly targeted way, and supplemented by other viral elimination strategies that do not exert specific selective pressure on the virus.
Strategies for viral elimination should therefore be diversified across molecular targets and therapeutic modalities
Put another way: vaccines are a powerful and useful tool that can help us mitigate the pandemic, but if used indiscriminately they may actually work against us, so we need to proceed with caution and also use other tools where possible.