So question about PvP

( I won't be actually saying any names of the players I caught doing this BTW)

Is joining a Leveling BG as a Max level full geared toon a reportable offense?

So I've been leveling an older toon I haven't played for of DF, and just for fun, I decided I would try to level through PvP just to see what it was like in this expac (Probably not the best idea at this point, but whatever), and I ran into a DH in Seething Shore, and got annihilated by them. So I thought "Damn, I must still be really squishy." (Playing Mage during this) And as the BG goes on I noticed this DH was Cleaving through us like butter, and not in the normal DH way... So eventually, My team and I figured out what's going on and why we keep dying so easily.

This DH is max level (and I believe Mythic Geared, or well geared and transmog'd to look mythic, either way, not good) And as of that wasn't bad enough, this guy found a way to get into our spawn. You know, the FLYING AIRSHIP.

So we get our asses handed to us (Alliance yaaaaaaay) and a go into another BG, and I lucked out. No DH (unfortunately it was Warsong Gulch and I suck at CtF in games and Irl) Sweet, now I can see what PvP is really like at this point, and hop back into Arathi Basin for my third fight of the day.

Five minutes later I'm dead and guess who I'm watching cut us down as we spawn... That Goddamn Demon Hunter...

Anyway, that's the last I saw of them (For now at least) and I did some normal PvP the next day

But earlier today I was in Deep wind valley or whatever it's called (The Pandaria Point Capture one) and we start the game normally. And then in the chat I see "THAT GODDAMN PALLY!" I immediately knew what was up, and Lol and behold, they were in our spawn killing us as we revived. They had a five points too, I've never seen a game of Point Capture end that quickly (3-4 minutes).

So long rant over and Terrible sentence structure aside, is this something you can be reported for? Or is it just one of those things where it's not against the rules, but seen as a Dick move? (Yes I am aware of what "Ganking" is, but idk if that applies to BGs or if it's just open world).

Ty