Maybe remove one bolt (in the back since the rear jacks carry a lot less weight) and see what/how it’s attached.
I’ve only removed brackets once and they were for a ladder but similar principle, not as much weight though.
Has to be aluminum stuffed with wood for a lag to hold, or somehow thru bolted if not, imo.
My only aversion to removing them wholesale is if they’re lag bolts, you only get so many righty tighty lefty looseys before you lose the thread strength in (wood).
What may be just as effective is cutting the oozed butyl flush and running a small bead of urethane on the top and side surfaces.
What you’re proposing though could work just fine. And I believe in proper maintenance but this seems closer to a fixing something that isn’t broke with some risk of further damage or rework (IE repairing lag screw holes potentially to get them to grab sufficiently).
Do you notice any water intrusion or corrosion or something that is prompting this? Cause that’s a different set of considerations.
Up until a couple years ago, I had the same camper as you (AF) but 9 years older. I do recall snugging the mounting bolts but no other issues.
All suggestions. Good discussion.