It seems easy enough to check the wick for moisture (check if the wick closes a circuit?) instead of using a float. Or using a float, but having a 10 minute lag

It seems easy enough to check the wick for moisture (check if the wick closes a circuit?) instead of using a float. Or using a float, but having a 10 minute lag after detecting an empty tank. I'm curious what the objections would be outside of the objections you mention (which sound like product defects more than an objection to the feature).