Glad you got to enjoy the east side diving, too. One thing I'd mention on the wetsuit and west coast diving; while heat retention, even with multiple dives/day for a number of days, may not be a big issue for everyone, abrasion protection on shore dives can be a serious benefit. Wading in and out, getting shoved around by surge or stumbling into an underwater rock near invisible from above water, much less falling in the shallows, it can be beneficial.
At least a rash guard can be nice for dealing with the harsh tropical sun. When I dive with a front zip shorty, I also wear a full body Lycra skin (what some might call a rash guard).
Something you probably didn't run into - there is a time so many days after the full moon, IIRC, when sea wasp jellyfish often come by shore in numbers, they're drawn by lights, and if you happen to get in before you realize they're around (which I did years ago at Buddy Drive Resort's pier), and the stings are really painful - like a cross between getting cut and getting burned painful.
I'm not saying it's wrong to skip a wetsuit in Bonaire - which I have done in the past. I'm just saying there are some non-thermal benefits. My Lycra skin wasn't sufficient protection from some scrapes/abrasions in the past.