I don't mind timeskip, for me it's actually too small.
Like the big problem with story timeline in WoW is that Azeroth exists for millenia - we got the Old God / Titan stuff, then long long nothing, War of the Ancients, then 10k years of some random wars and skirmishes here and there, 3 de facto World Wars in a span of 20 years... and then 5-6 world/universe ending threats in another 20 years...
When you need pump content for your players in a 2 year circle, it starts to get silly with the amount of apocalypses happening right after another.