It’s important to always use your head and think through any “maintenance” interventions, to understand - are you doing something just to Do Something? or is there a real theory with data that suggests this will be helpful to your specific horse and issue.
Some things that barns do as “maintenance” and sometimes to every animal in their barn are probably not beneficial and could be harmful.
To your specific case, it sounds like you have a tailored treatment plan for your horse. The way I’d evaluate it and if the horse needs to step back is - is the horse happy in his work? Is his face soft and comfortable? Is he glad to see you for a ride? What do you see in pictures?
We do the best we can and kudos to you for listening.