Kinda getting in this a bit late. Read through the rules, haven't actually tried them out yet though.
But I must say, this whole topic seems a bit...well, overblown. The game balance of TSEMPs really depend on only one thing: the "sportsmanship" of the players involved.
Guess I'm lucky in my group. We mostly play canon designs (mostly just a speed issue, can print out all the RS on SSW). Don't really have any muchkins/power-gamers. We all play pretty aggressively. We'll pounce on any tactical mistakes someone makes, but we'll always explain the mistake if asked. We have one hard rule: "Have Fun".
I am looking forward to trying it out tough. As I like being sneaky and evil to other players (for example, I love the Munchkin card games >:D), it makes my inner Cappie happy. Would I flood the field with them? No of course not. That wouldn't be fun for the other players and would be to limiting for myself.