Quoted from Bond_Gadget_007:
<<so going for drops can be lucrative, but dangerous>>
Only dangerous in single ball play, hence why being in multiball will become the only safe strategy. People try to justify Avengers rules but there's a reason you never see that game in tournaments (Loki MB all day). Code update can fix this, but its a big oversight by Tanio and Mike amateur programmers right off the bat. It's Pinball 101 you must qualify the mode before multiball starts.
Going for them in multiball is easier said than done.
It's a trade off really. The game continues to cycle through the 3 drop target modes. If you knock a drop down when it's on one you've already lit, you have to complete the bank before you can try for the other completions.
In multiball it's common for a stray ball to hit the targets at the wrong time, then you have to hit them all down and try again!
It's easier in single ball play to time it. It's less risky in multiball because you have more than 1 ball, but it punishes you for mis-hits.