I mean, yeah that's a three card combo. 3 card combos should be better than singular cards. If my opponent plays veranus, soul mirror, etc. into that I'll be down three cards instead of one. Paladin doesn't have the card draw to sustain multicard combos like that. Thats why paladin is pigeonholed into tempo decks. No card draw = no late game.
Also, you have to run desk imp for this. You'd never run that card except specifically for this combo. When you're trying to make a point, avoid extreme, specific examples. Card games have variance. Sure, that's a lot of stats, but it requires you to run an otherwise bad card in your deck. Desk imp wouldnt be in the pally deck because it's worse than other cards in almost every circumstance, and it's not even gamebreaking in your cherry picked example.