Does boxing give you a different perspective on atemi?
I think you have to be careful with boxing..just like you do with anything else. Boxing is also predicated on "rules" and assumed constraints, just like Judo, BJJ, Aikido or any other method of training.
Boxing is a sport of attrition and a sport that has very limited things you can do to your opponent. So, therefore, boxing strikes and strategies dictate to a large degree how you will punch. Some of those punches and bobing and weaving will get you in trouble.
Of course, there is great, great value in studying boxing as long as you keep this in mind.
Muay Thai is good because it allows kicks and clinching etc...so I believe the timing and "game plan" you develop in Muay Thai to be a better fit to MMA training, and it is why you see MMA guys studying MT vice Boxing. Of course, MT has it's weaknesses as well.