i dont really think its going to hard for one reason:
he doesnt fight like someone that has 7 years of skill training or exp. if he did, and he was swinging for the fences with the newbie, then yeah, i would say he was being a bit out of whack, but since he seems like a rather unpolished beginner himself, its hard to accuse him of going to hard.

any time a trainer asks me to work with someone who has never sparred before, i keep two things in mind: one, dont hit him on the chin, and two, let him land some shots if he is doing something right. since its a sport where you work from the ground up, its important that beginners trust their basics. if i see a kid working a jab dilligently, even though i'm constantly sniffing it out and in no danger of getting hit by it, i'll let him bounce a few off my head and give him a nod and a smile. or if a kid tries to work the body, which is rare for a first timer, i will cover my floating rib and liver and just let him crack my ribs a few times so he doesnt get discouraged and become a head hunter.

what i see here though, is two people who aren't really looking to exploit weakness or help each other out, just throwing punches really, and if someone has seven years of experience, then they should be beyond throwing punches, and the kid w/ 4 months of exp. will probably go past him soon enough.