Potentially, a number of those stats are hard to get at this stage, some even until years after initial release. The standby time of my Pandora for example improved massively around a year ago when Notaz got some time and spent it analysing idle power consumption. Granted, for the first few years I had my Pandora I needed to charge it every night, so there's value in that initial stat. But you don't even get that initial stat until the prototype devs have fiddled with the timings of chips and so on, so potentially you don't get initial numbers until the day the first unit ships, and they could still improve.
Stats would still be interesting, and if they were updated as things improved that would give us something to look at, but those do take time to perform so might interfere with other work being done. It might be nice if one of those with prototypes and a bit of free time came up with a script that could automate a lot of this stuff though.