You really don't need to take it that far.
Lords of War will be okay with a point cap of some kind that is percentage-based, it will keep out the ridiculous stuff and keep in the lower-end things in a nice simple way.
Chase mentioned to me at a point that the doubles was meant to be fun and less competitive, and that potentially a singles event would be the hardcore bit. In that regard, I didn't really think the cards were a bad thing at all -- they kept our games pretty lively and interesting. I have a bit of a different view than most people, I suppose, but to me when I saw another team get a good draw that came up big for them, it was no different to me than when I saw a team get a great dice roll, or win a close combat, etc. I can see how it would suck if you dominated your opponent but they still won by a landslide with the cards...but I don't see that happening much.
I'm a firm believer that simple fixes are the best fixes. If there is a problem with the cards, it would be better to limit them in some way then to axe them entirely. They make a lot of the things in the game that rock on pure power level become marginalized (2++ units who don't get points for the objective they stormed, for example). It really forces you to control the board and try to fight effectively in a few places at once, which I thought made our games better in most cases.
In our second match it felt like we were doing great but when ended up losing by a margin purely because of the cards drawn by our opponent on the last turn. Capping on the GAME turn instead of player turn adds a LOT of power to the second player, because they have the ability to deny player one but player one will never have the ability to deny player two (realistically, anyway). I'd argue that would be less fair at times than random cards for both players.
You could also just say that people can only cap one card each turn. That might stave off the big draws a bit. Or maybe max the amount of VP you can get off of them as a lot. Or maybe make it so they aren't able to be scored if you have a certain lead, so that the score stays close. I don't know, I'm just throwing out random ideas here, but I guess my ultimate point is long-term I'd tweak the cards rather than ditch them.
More importantly: I think for the kind of "cas-com" bracket, this was a great event, and if you're looking for a format that will bring in a broader audience outside the strictly competitive circuit, just limiting the Lords of War to a percentage to keep stuff like Reaver Titans off the table would probably suffice, if you are looking to cater to a more competitive crowd, I'd tweak the cards to be more fair/less valuable (maybe just a secondary or tertiary? Just a thought).
Everyone we played was excellent and we had three great games. It was great to see a good turnout!