What on earth makes you think that? What I say is that the update has been tested and implemented on the French server before this one, so unless I'm much mistaken, it is already running there when the updates are done here.
Ah! So adding new types and classes of content, and what is comparable to new adventures, new buildings, new generals, new troop types, and bug-fixes, are not updates. Thanks for the clarification
And no 2-4 hours downtime is not a big thing for me, just seems strange that what other companies can accomplish with no downtime, BB needs 2-4 hours (and sometimes a lot longer) to do, and BB have tested the update on the test-server and run it on the Frensh server, before this one.
P.s. TSO is not a "cassual" game, it's a game that requires constant attantion to your island, so missing out on one a game session, does make a difference to your island.