Georgia was the aggressor in 2008 whereas Ukraine was not the aggressor right now; that made a huge difference in Western attitudes between 2008 and right now, most likely.
The problem is that I suspect that for many Ukrainians, this Russian invasion is only going to reinforce their belief that only NATO membership would offer genuine, long-term security for their country. This would be especially true considering that Putin and likely many Russians still view Ukraine as an artificial country and want it for its human capital:
The Empire, Long Divided, Must Unite
akarlin.substack.com
Russians have always had designs on Ukraine even when Ukraine was not seriously considering NATO membership. You remember Putin's attempt to bully Yanukovych, an opponent of NATO membership of Ukraine, to join the Eurasian Union? :
en.wikipedia.org
And really, one has a perfectly legitimate question: Why exactly is Baltic membership in NATO acceptable for Russia but Ukrainian membership in NATO is unacceptable for Russia? Russia has a lot of nukes to protect itself either way. As Anatoly Karlin writes in the same article from above:
"We live in the ICBM age"
This, of course, means that Ukraine's value as a buffer for Russia is much, much less than it previously was. Especially when the NATO Baltic members are already so close to St. Petersburg and when NATO already has ICBMs.