The paint "breathing" idea is just a myth. Paint is not a living organism nor does it need "essential' oils to keep it healthy.
Here's some info on one sealant, Zaino, and it's ability to interact with paint and metal:
<blockquote class='ipsBlockquote' >
Zaino is a complex synthetic "polymeric system". These polymers are lab-produced, hydrocarbon-based, string-like molecules, which are capable of cross linking or bonding together to produce a (microscopic) flexible chain-link fence type of weave. When applied to your car's clear coat, the Zaino polymers
produce a perfectly clear yet flexible layer of protection.
This layer is very thin, but (because it is flexible) can expand and contract along with your car's sheet metal. Any and all Carnauba or other wax based products when exposed to repeated expansion and contraction (ie: heat of the day and engine heat) will develop tiny 'cracks' which grow, allowing the oils to leach out, and permit dirt to stick to the surface. This cycling effect also makes the wax system become unstable, decreasing gloss, water beading and paint protection.. This will not happen with the Zaino polymers...</blockquote>
Today's paints cure within days, not months or years.... It's completely safe to apply Zaino over 1 week old fresh paint, but the same can't be said for carnauba or other polishes.
I don't know if the same effect applies to other sealants since the majority of my experience is with Zaino in the sealant category.