Thanks for the great feedback, we definitely agree on general design philosophy.
It originally switched back to probes after disarming, and that led to players losing probes b/c they expected the disarm to stay equipped haha. I'll add this an option in the settings menu so everyone can choose their own preference.
Endless already tries to focus on one or two mine types per level (since full random selection would feel even more same-y), and letting that focus be a lot more extreme sometimes would be really cool. That said it's REALLY easy to overdo it, so you'll probably see some gradual progression towards that idea instead of any sweeping (lol) changes.