If NATO as a whole responds, yes it's in Ukraine's interest. If the NATO response is weak and non-cohesive, it is a victory for Russia, demonstrating article 5 isn't worth the paper it's written on. Let's see how things play out. So far we're in "small, plausibly deniable provocation" territory, but if this follows the "salami slice" M.O. we would expect Russia to keep slicing if they feel there's not enough push-back
NATO not going total war over a few airspace incursions does not prove a lack of resolve to defend its territories. Russia is also not salami slicing its way to anything if it's not causing meaningful damage or territorial exchange.
Conversely, Russia(n leadership) would probably love an overreaction by NATO to unlock the use of its conscripted army for "defense," which is not feasible in the current war of aggression.