It appears all of the source links are broken. I would like read them because Liquidrage is correct based upon just the statements claimed in that list.

Hybrids in SUVs & trucks would likely be more practical to consumers and manufacturers.

A hybrid version of a vehicle that already gets good gas mileage in traditional form (like a fuel-sipping Civic) will take longer for the consumer to recoup the additional cost of the hybrid engine. Hybrid versions of low gas mileage traditional vehicles (like trucks & SUV's) would reap benefits much sooner if they can perform proportionally as well as current smaller hybrid vehicles over their traditional counter-parts.

Also, the margins are generally higher for trucks & SUV's; I would see more incentive for manufacturers to sell them regardless of traditional or hybrid powertrains.