I think Lutron has done an awesome job with Alexa integration, though like others I hope to see more capabilities added. We just provided Alexa integration for a Homeworks QS system to one of our VIP Clients as a Christmas gift/surprise. After being shown his new toy, I am told that literally the first thing he did was say "Alexa, dim the kitchen lights", at which point it had to be explained that wasn't possible. IMHO it does not come off well if people are seeing $99 crap lights on TV ads being dimmed by voice, but then have to be told that their high end lighting system can't do it - so I hope Lutron prioritizes adding dimming capability.
Additionally, I think dimming capability is a natural for voice rec because it's the type of think many people would do a lot more if they didn't have to get up to do it.