I see what you're saying. For me, each of those looks like a legitimate change in value, so I'd be happy with those event being sent... then again, I'm not concerned about DB event logs at the moment! 
Looking through the posts above, am I to understand the issue is it make the event page slow to load for the APIXU driver and may increase the size of the database/backup if it's done before the nightly event purge (1k retention) is done? Purge Device/Hub/Location events - #15 by csteele
In that case, wouldn't it be a valid update for the sunrise values? Or are you saying you just don't care about sunrise values at all and would want to filter them out?
It seems like having the option of filtering those unneeded attributes would be the 'easiest' solution here... sounds like the remaining issue preventing implemention of that is not having a multi-select input in the device drivers. Has anyone asked @mike.maxwell @chuck.schwer or any of the HE guys if they have plans to implement a multi-select for device driver preferences?