You must remember those older devices were before Google set the guidelines post ICS as well. Updates should happen at set schedules now and there are certain things makers have to adhere to.
Yes, GB still takes a slightly larger portion but ICS and JB combined dominate almost half of the rest: http://www.androidtapp.com/tag/android-statistics/
As said, phones of 'today' will follow the new guidelines and won't (shouldn't) fall foul of not getting updated. They're all certainly powerful and specced well enough to handle the updates.
Also remember many of those GB devices will be sitting on appliances for home media use like media players and other "Android" portables. Cheap stuff that sell on eBay but are bought by loads of people. Stuff that will rarely ever get updated because they're doing one thing only.
+1 I have two media players (both Sony) which still run Gingerbread and haven't got a chance in hell in being updated and will never see the likes of ICS.
I guess much like LG, he's trying to rain on Samsung's parade?
Absolutely...he's bricking himself!