Why does mana cheat have to be a thing?

A rogue just cheated out a full board of big undead for 0 turn 3. What is even the point of this game anymore? The way this mechanic works is like in any other game allowing a character to steam roll a match at the very beginning and rendering the entire match null. Getting a nuke from a care package isn’t even an equivalent example the mana cheat gets so bad.

The things I hate are curses, discards, card burn, brann and charge.