The entire event (all three phases combined) should have taken 2 weeks max, about the length of a regular event, especially since content we've already paid for is gated behind event completion.
I'm fine with waiting. I bought all chapters since Morrowind as soon as they became available for pre-purchse (Morrowind had already been released when I purchased ESO), and bought all DLCs since Clockwork City as soon as they became available in the Crown Store, but I don't usually play through the new content until much later-- for instance, I've only just finished playing through High Isle on PCNA earlier this year, and have only played through Orsinium on PCEU. I'm in no hurry.
Its just so boring, having to fill another 100% bar, grinding the same quest over and over again. It would help if the progress bar would fill a bit quicker