Hard to say for sure. Being that this is a new unit, without any sort of accumulation of crud, before it went swimming in clean water – i think you are probably good to go. I would not expect any sort of lasting damage, newer components generally don’t have cumulative electronic wear and that sort of thing. And as i said before you’re probably OK on corrosion.
On the other hand a cleaning by someone competent with that is not going to do you any harm, and does stand some chance of being of benefit.
Older stuff (>5 to 10 years) with lots of use or in a dirtier environment, could use a clean out /blow out regardless whether or not they’ve gone swimming and soaking, and in particular if they have. And i’d clean out anything that has a fan, at least once a year, or more frequently. Crud (ionic crud meaning salts in particular) and simple moisture in the air is sufficient to cause problems, both corrosion and shorting.
Whenever you open something up, and clean it you also have to be careful about static discharge inside the box. So how you clean out the crud is important.
Here’s something you might not consider, in the winter if the electronic system gets cold, and you bring it inside to the warm moist air, you should leave the electronics in their box or case until they warm up, to prevent causing condensation inside the box. Especially things with fans, but also true in general.
Tropical environments present their own issues.
Does Elektron say they would honor the warranty if the unit fails, particularly the sorts of failures that might be more common with the OT 2? if that unlikely thing should happen sometime in the future. I think they would – they’re a pretty above board kind of outfit.