Increasing front track by 15mm will basically reduce motion ratio by about 7%. But, increasing track also help to resist roll. So, ostensibly, the loss of damping may be a bad thing, but role resistance due to a wider track compensates. I do not know how effective the wider stance is with repect to compensating for damping loss; it may offer more role resistance than a 7% loss in motion ratio, or less...or the same.

I also do not know the affect of a wider stance on a one wheel bump or how it might affect the rate of roll. From first hand experience, turn-in is reduced, but mid corner thru exit can be taken with much more throttle. With regard to turn-in; although the ackerman angle is not changed, the projection of the Ackerman angle is wider due to the increase in track.

Basically, the loss of damping is not a doom and gloom thingy - a technical term.