Should I allow this?

I’m running a family league that has been heated of late because of the ridiculous and redundant trades going around. I’ve allowed every trade thus far to go through because they had their merits on both sides. This however, looks like a dump off from our 0 - 9 team, but he promised me he wants this trade because he is still mathematically able to grab the last playoff spot:

He gives away
Tyreek Hill
James Conner

He obtains
Kareem Hunt
David Johnson
Amari Cooper

He already has two Cowboy receivers on his roster, this would make three of them. I don’t like this, but every trade calculator says he wins this trade and I’m struggling. Should I veto this trade?

Thanks in advance
Derek

Gotta let it fly. NO VETOES!