Well, I do agree with you on all accounts.
But again, most of us have been on the meteor train before it was 1.0 and are by association forward thinking people, caring less (than others do) about some aspects of a stack that we previously used to take for granted.
I remember just a few months back when people argued meteor not to be production ready, it was lack of an account system before that, in a few weeks/months (as the article suggest) meteor apps will have become perfectly indexable by google.
Well, I strongly believe facebook will have that covered soon as well.
As for yandex, bing etc, well as much as I am pro competition, I don’t really care after google gets to show my pages on search results for some 90+ % of people doing searches on the internet.
In the meantime, we can use prerender.io which is very simple to intgrate with meteor.
But let me add that, I’ve been actively coding apps/sites to show a go-upgrade-your-browser overlay (yes an undismissable annoying mandatory monsterous overlay) to IE<9 for through 2013-4 and now I’ve taken it further to restrict browsers < IE10. So this is my preference. We need to make hard and firm choices to be able to move forward. And this time I’m betting on Meteor and bots’ ability to index them.