Using just two microphones is a perfectly valid approach for tracking drums, especially if you are looking to capture the drums exactly as they sound in the room.
Is 4 mics enough for drums?
Four microphones might be all you need. The Glyn Johns technique uses only FOUR microphones for capturing a full drum kit. Today, let's look at exactly where those microphones should be places and listen to how it sounds. Drum miking is an art form you might be missing.
How Many mics does it take to record drums on Reddit?
With four mics you can do stereo overheads, kick and snare. You shouldn't need more than 4 mics to get a great sound.