I don't think there'd be much risk of "3 or 4 loss" teams getting in an 8 team field. If you're gonna bash someone else's position, do so accurately--nobody's advocating a massive expansion, but instead only one to 8 teams at most. The odds of an 8 team field including teams with more than a couple losses are extremely slim to say the least.
And if such a team did get in, would that really be such a bad thing? Just because the current college football format won't allow for the possibility of cinderella, doesn't necessarily mean it's a good thing. One problem with college football is you always know the same few titan programs that horde all the talent (Alabama, Ohio State, etc.) are gonna dominate each year--about 95 percent of fans begin each season knowing their team has no chance. It might be nice if more thought they actually had a chance to get in and have a shot at tourney glory.
Valvano expressly made the point that he would support all P5 champs getting in even if they had 3-4 losses. Talk to him about his position before you cry about bashing and being inaccurate.