I agree with you in this matter man. These exploits are completely unnecessary. When I'm invited people say they are going to cheese and I just leave. Crota is so simple as it is if you got 2 good snipers and 3 burners for crota with tracking missiles (truth and ghallahorn work really good). Bridge usually what my normal group does is we get 3 across then if we are in a rush we just have the other 3 jump off and the 3 who made it burn the ogres. Deathsingers is simpler than people think too. Send 2 groups of 3 on each side then when u enter the hallway there are little ledges on the wall you can stand on to avoid the sword Knights. If you have a titan he can even put a defender bubble up to protect you from gunfire after your shrieker is dead