A few moments ago, I contacted customer support about the short 15 second timeout on my Acer Spin 3 backlit keyboard. I know there are others with the same issue and felt I would provide an update.
Here's the response from Customer Support: My apologies but, unfortunately there is no option to extend the time for the backlit to be on when not using the keyboard (or when using it) that timeframe is automatic and cannot be changed ... my apologies, that is not considered an issue since the computer is doing what is suppose to do, we do not have any information regarding the backlit time off getting extended in newer models. My apologies, but I cannot answer that question
When I asked if the timeout issue could be escalated, the answer was: I will create a note regarding this, but cannot promise anything ... you can use this link to submit a complain https://community.acer.com/en/
Thus my posting this. If anyone has discovered a backdoor method to extend the 15 second keyboard back lighting issue, I know myself and others would like to know how.